mlsa-iai-msu-lab/ru_sci_bench_zho_cite_reranking huggingface dataset:
An innovative trigeneration system using biogas as renewable energy

One of the ways to decrease the global primary energy consumption and the corresponding greenhouse gas emissions is the application of the combined cooling, heating and power generation technologies, known as trigeneration system. In this research an innovative trigeneration system, composed by an absorption heat pump, a mechanical compression heat pump, a steamplant, and a heat recovery plant is developed. The lowtemperature heat produced by absorption chiller is sent to a mechanical compression heat pump, that receives process water at low temperature from the heat recovery plant and bring it to higher temperatures. The trigeneration systemis fed by biogas, a renewable energy. A design and a simulation of the system are developed by ChemCad 6.3® software. The plant produces 925 kW of electrical energy, 2523 kW of thermal energy and 473 kW of cooling energy, by the combustion of 3280 kW of biogas. Primary energy rate (P.E.R.) is equal 1.04 and a sensitivity analysis is carried out to evaluate the effect of cooling capacity, produced electrical energy and process water temperature. The first has a negative effect, while other parameters have a positive effect on P.E.R. Compared to a cogeneration system, the trigeneration plant produces the 28% higher of power and the 40% lower of carbon dioxide emissions. An economic analysis shows that the plant is economically feasible only considering economic incentives obtained by the use of heat pumps and steam plant at high efficiency. Saving 6431 t·a~(-1) corresponding to 658000 EUR·a~(-1) of incentives, the plant has a net present value (N.P.V.) and a pay back period (P.B.P.) respectively equal to 371000 EUR and 4 year. Future works should optimize the process considering cost and energetic efficiency as the two objective functions.
Osmotic concentration of succinic acid by forward osmosis: Influence of feed solution pH and evaluation of seawater as draw solution

In this study, we investigated the essential role of feed solution pH so as to gain insights into the transport mechanisms of succinic acid concentration by osmotically-driven forward osmosis (FO) process. FO performances including water flux and bidirectional transport of succinate and chloride anions were systematically examined using cellulose triacetate-based FO membrane. Additionally, real seawater was explored as draw solution. Experimental results revealed that the pH-dependent speciation of succinic acid can affect the FO performances. Ionization of succinic acid at higher solution pH enhanced the osmotic pressure of feed solution, thus leading to lower water flux performance. A strong effect was pointed out on the succinate rejection for which nearly 100% rejections were achieved at pH above its pK_(a2) value. The rejection of succinate increased in the following order of chemical form: C_2H_4C_2O_4H_2< C_2H_4C_2O_4H~-< C_2H_4C_2O_4~(2-). With real seawater as the draw solution, low to moderate water fluxes (<4 L·m~(-2)·h~(-1)) were observed. The divalent succinate anion was highly retained in the feed side despite differences in the succinic acid feed concentration at pH of approximately 6.90.
中医药抗幽门螺杆菌作用的机制研究进展

幽门螺杆菌(Helicobactor pylori ,H. pylori )感染被证实与胃炎、消化性溃疡、胃癌等多种消化系统疾病密切相关,被WHO列为Ⅰ类致癌因子.根除H. pylori是防治多种消化系统疾病的有效途径.目前临床治疗 H. pylori感染仍以标准抗菌方案为主,随着标准抗菌方案应用的普及,原发耐药和多重耐药现象也日益严重, H. pylori耐药成为导致H. pylori根除治疗失败的主要原因.探索治疗H. pylori感染新路径是当前研究的热点问题,其中中医药治疗H. pylori的作用受到越来越多的关注,且已发现多种中药具有确切的抗H. pylori作用,有望成为根除H. pylori的新选择.笔者基于中医药抗H. pylori感染基础研究分析其抗H. pylori机制.
水平直压式垃圾转运站转运工艺设备配置设计

在介绍水平直压式转运工艺流程的基础上,提出转运工艺设备的计算方法与配置原则。并以某水平直压式垃圾转运站为例,对垃圾压缩机、卸料槽、箱体平移机构、转运车辆以及转运集装箱的工艺参数与配置数量进行设计。
两级厌氧-好氧-深度处理工艺处理柠檬酸废水

某柠檬酸废水采用EGSB—UASB—氧化沟—臭氧脱色—曝气生物滤池(BAF)工艺。 EGSB和UASB有机负荷分别为14.3kgCOD/(m~3·d)和7.2kgCOD/(m~3·d)时,COD去除率分别为86%和82%,出水COD分别为1 500mg/L和650mg/L,VFA分别为130±50mg/L和50±25 mg/L,两级厌氧串联可以将COD降到较低的水平。氧化沟有机负荷为0.52kgCOD/(m~3·d),二沉池的出水COD在65mg/L以下。臭氧接触池可以将色度从70降到21,BAF出水COD小于50 mg/L,出水指标达到《城镇污水处理厂污染物排放标准》(GB 18918—2002)一级A标准。
Effects of yttrium and phosphorus on growth and physiological characteristics of Microcystis aeruginosa

Yttrium is a main kind of rare earth elements (REEs) with wide applications in modern industry and farming. Phosphorus, an essential element of algae, is used as the nutrients and also one of the main factors of eutrophication. To investigate the effects of yttrium and phosphorus on Microcystis aeruginosa (M. aeruginosa), the growth and physiological changes were studied by lab cultured experiments. In the experiment, exogenous yttrium was tested by a concentration gradient (0.0, 0.1, 0.3, 0.5, 1.0 mg/L), meanwhile, phosphorus was tested by three concentrations (0.0, 0.02, 0.2 mg/L). The results show that the contents of chlorophyll a (chl-a) and soluble protein increase compared with the control and they have certain correlation with algal cells density. The growth status of algae is stimulated by initial yttrium concentration ≤0.3 and 0.2 mg/L phosphorus, while it is inhabited by 0.5 and 1.0 mg/L yttrium. Besides, the activity of superoxide dismutase (SOD) of algae increases with addition of yttrium dose (0e0.3 mg/L) when phosphorus dose is 0.2 mg/L. Furthermore, when yttrium dose is 0.5 and 1.0 mg/L, the vitality of SOD presents a sharp decline. The malondialdehyde (MDA) contents increase with time and addition of yttrium dose, 0.2 mg/L phosphorus weakens the accumulation of MDA.
扁桃体切除术后患者出血再入院的原因分析与护理对策

目的讨论扁桃体切除术后因出血再入院的原因及预防出血的护理对策。方法采用回顾性研究对11例扁桃体切除术后因出血再入院患者的病历资料进行描述性分析。结果328例扁桃体切除术的出院病例中,因出血再入院患者11例,出血再入院率3.4%。出血距术后5~7d2例(18.2%),8~10d4例(36.4%),10~23d5例(45.4%)。结论扁桃体切除术后继发性出血高峰期为假膜脱落阶段,创面感染、口腔护理不佳、不正当饮食等是出血的主要原因。应对患者及其家属实施有针对性的健康教育,教会患者及其家属观察假膜情况,指导正确的口腔护理及饮食方法,监测基础疾病,遵医嘱用药,以减少出院后出血情况的发生。
社区PICC专业护士规范化培训的效果

目的提高社区PICC专业护士的PICC相关理论知识。方法对金山区18名PICC专业护士进行PICC专业知识规范化培训。结果18名PICC专业护士规范化培训后换药操作评分为96.78±2.00;理论考试成绩培训前为67.83±7.14,培训结束时为91.50±3.31,培训结束后1个月为84.89±4.63;培训结束时及结束后1个月理论考试成绩较培训前显著提高,但培训结束后1个月较培训结束时下降(P<0.05,P<0.01)。结论规范化培训可以提高PICC专业护士护理水平,应定期进行专业理论培训,巩固相关知识,增强学习效果。
替加环素治疗肝移植术后鲍曼不动杆菌感染患者的护理

目的总结应用替加环素治疗肝移植术后耐药鲍曼不动杆菌感染患者的护理经验。方法对15例肝移植术后鲍曼不动杆菌感染患者给予替加环素治疗,规范用药、观察用药作用和不良反应,给予预见性护理。结果患者均治愈出院,随访1年肝功能良好。结论替加环素用于肝移植术后耐药鲍曼不动杆菌感染的治疗过程中注重针对性护理,有利于防止相关不良反应,保障疗程的顺利实施。
改良负压治疗技术及微信随访在居家慢性伤口延续护理中的应用

目的探讨改良伤口负压治疗技术联合微信随访应用于居家慢性伤口的效果。方法对居家慢性伤口患者21例共24处采用负压持续吸引治疗,并建立微信平台,由伤口专科护士给予居家指导。结果20例23处慢性伤口完全愈合,治愈率为95.83%,平均愈合时间(57.23±18.75)d;1例乳腺癌术后放射性损伤伴骨外露患者接受改良负压治疗技术后伤口肉芽新鲜,转烧伤整形科行皮瓣转移修复手术,皮瓣及植皮成活,创面完全治愈。结论改良后的伤口负压技术应用于居家慢性伤口患者,能有效营造有利于伤口愈合的环境,促进肉芽组织生长和伤口收缩及愈合;通过微信随访进行伤口负压治疗质量控制和居家指导,能缓解患者恐慌焦虑情绪,增加患者依从性,提高伤口治疗效果。
美洲大蠊不同炮制品对CCl_4致小鼠急性肝损伤的保护作用

目的探索不同炮制方法下美洲大蠊对CCl_4致小鼠急性肝损伤的保护作用。方法采用CCl_4致小鼠急性肝损伤模型,各实验组按炮制给药方法分为空白组、模型组、原药组、清炒组、盐炙组、麸炒组、米炒组、联苯双酯组。连续给药1周后,除空白组外,各实验组腹腔注射0. 2% CCl_4橄榄油溶液,禁食不禁水24 h后,摘除小鼠眼球取血,分离血清。测定血清谷草转氨酶(AST)、丙氨酸转氨酶(ALT)的活性;取肝脏测肝脏系数,固定于10%的甲醛溶液中,进行肝脏病理组织学考察。然后采用索式提取器测定各炮制组油脂含有量,采用考马斯亮蓝法测定各炮制组蛋白质含有量,采用苯酚-硫酸分光光度法测定各炮制组多糖含有量。结果与模型组比较,各炮制组与原药组均能显著降低小鼠肝脏系数,各炮制组能显著降低小鼠血清中AST、ALT水平(P < 0. 01),而原药组对小鼠血清中AST、 ALT水平的降低与模型组比较不具显著性差异(P > 0. 05),HE染色表明麸炒组病变最轻。与原药组比较,各炮制组油脂含有量下降;蛋白质含有量以盐炙组最低,原药组最高;多糖含有量在盐炙组、清炒组均较高,在原药组、麸炒组、米炒组均较低。结论美洲大蠊各炮制品均能对CCl_4致小鼠急性肝损伤起保护作用,以米炒、麸炒组效果最佳,原药组效果最差。
中国劲酒抗疲劳、调节免疫力及增强性功能作用的研究

目的研究中国劲酒抗疲劳、调节免疫力、增强性功能的作用。方法小鼠随机分为对照组、基酒组和中国劲酒高、中、低剂量组,通过负重游泳实验、血乳酸累积与清除实验、肝糖原实验、碳廓清实验、脏器/体重比值测定、血清半数溶血值(HC50)测定、交配实验、附睾精子计数、性器官指数测定、血清中睾酮含有量测定进行功效研究。结果中国劲酒各剂量组对小鼠各期体质量及其增长均无明显影响;能显著延长小鼠负重游泳时间,效果呈剂量依赖性,还有助于运动后血乳酸清除和肝糖原含有量升高;对小鼠脾脏、胸腺的脏体比无明显影响,与对照组相比能显著提高单核-巨噬细胞的吞噬指数,HC50高于对照组和基酒组;对小鼠睾丸、附睾、前列腺、精囊、精子数量无明显影响;与对照组和基酒组相比,能提高血清睾酮水平,可使小鼠性行为潜伏时间显著缩短,次数显著增加。结论中国劲酒具有较好的抗疲劳、调节免疫力、增强性功能的作用。
一种基于镜像原理的神经-肌肉康复训练器设计

镜像疗法(mirror therapy,MT)又称镜像视觉反馈疗法(mirror visual feedback, MVF), 1995年由 Ramachandran 等学者首次提出并应用于幻肢痛患者疼痛治疗。镜像疗法是指利用平面镜成像原理,把健侧活动的画面倒映在患侧,让患者想象画面中是患侧在运动,通过基于运动想象及视错觉、视觉反馈等,结合康复训练项目而形成的治疗手段。 1998年,Altschuler在第28届美国神经科学年会上首次报告镜像疗法应用脑卒中后运动功能康复,并在1999年发表镜像疗法应用于卒中后期患者上肢功能康复的临床研究。至此,镜像疗法应用领域逐步转移到脑卒中后的肢体康复,并多从运动恢复、控制、动作观察、学习等方面进行研究。
精囊原发性平滑肌肉瘤一例

讨论发生于泌尿生殖系统的软组织肉瘤(STS)不足5%,原发于精囊的平滑肌肉瘤更为罕见,截止2011年英国报道的病例仅有8例,中位年龄59岁。我国迄今为止报道的病例有16例(包括本例,其中2例为精囊平滑肌肉瘤伴腺癌),中位年龄58. 5岁(26 ~ 76岁)。本病病因不明。由于精囊位于盆腔深处,早期症状不明显,诊断困难,发现时多为晚期。血精是其最重要的临床表现,但多数患者以下尿路梗阻或下消化道梗阻为首发症状。
Inhibitory Effects of Sulfur Dioxide on Rat Myocardial Fibroblast Proliferation and Migration

Background: Myocardial fibrosis is an important pathological change in many heart diseases, but its pathogenesis is very complex and has not yet been fully elucidated. The study was designed to examine whether endogenous sulfur dioxide (SO_2) is a novel myocardial fibroblast proliferation and migration inhibitor. Methods: Primary rat myocardial fibroblasts were isolated and transfected with aspartate aminotransferase (AAT1 and AAT2) knockdown lentivirus or empty lentivirus. SO_2 content in the supernatant was determined with high-performance liquid chromatography, and the expressions of AAT1, AAT2, proliferating cell nuclear antigen (PCNA),phosphorylated extracellular signal-regulated protein kinase (p-ERK), and total ERK (T-ERK) in the cells were detected. Cell migration was detected by wound healing test. Independent sample t-test (for two groups) and one-way analysis of variance (three or more groups) were used to analyze the results. Results: Both AAT1 and AAT2 knockdown significantly reduced SO_2 levels (F = 31.46, P < 0.01) and AAT1/2 protein expression (AAT1,t= 12.67,P<0.01; AAT2, t = 9.61,P < 0.01 ),but increased PCNA expression and Cell Counting Kit-8 (CCK-8) activity as well as the migration in rat primary myocardial fibroblasts (P < 0.01). Supplementation of SO_2 rather than pyruvate significantly inhibited the increase in proliferation and migration caused by AAT knockdown (P < 0.01). Mechanistically, the ratio of p-ERK to T-ERK was significantly increased in the AAT1/2 knockdown groups compared with that in the empty lentivirus group (AATl, t = -7.36, P < 0.01; AAT2, t = -10.97, P < 0.01). Whereas PD98059, an inhibitor of ERK activation, successfully blocked AAT knockdown-induced PCNA upregulation (F = 74.01, P > 0.05), CCK-8 activation (F = 50.14, P > 0.05), and migration augmentation in myocardial fibroblasts (24 h, F = 37.08, P > 0.05; 48 h, F = 58.60, P > 0.05). Conclusion: Endogenous SO_2 might be a novel myocardial fibroblast proliferation and migration inhibitor via inhibiting the ERK signaling pathway.
Long-term surface water changes and driving cause in Xiong'an, China: from dense Landsat time series images and synthetic analysis

China's government statement recently reported the plan of constructing Xiong'an New Area, which aims to phase out some extra capital functions from Beijing and to explore an innovative urban development mode with the priority in eco-environmental protection. The New Area is located in the semi-arid North China Plain (NCP) and is home to NCP's largest natural freshwater wetland, Baiyangdian Lake. A comprehensive realization of surface water dynamics would be crucial for policy-makers to outline a sustainable environment development strategy for New Area. In this study, we used a total of 245 time slices of cloud-free Landsat images to document the continuous changes of water bodies within Xiong'an City during 1984–2016 and to provide detailed evidence of water presence and persistency states and changes under the influences of climate change and human actions. Our results reveal that the New Area water body areas varied dramatically during the past 33 years, ranging from 0.44 km2 in April 1988 to 317.85 km~2 in February 1989. The change of surface water area was not characterized by a monotonically decreasing tendency. The evolution processes can be divided into four sub-stages: the first extreme desiccation in mid-1980s, the wet stage with the most extensive inundation areas and strong inter-annual fluctuations from late-1988 to late 1999, another desiccation stage in early 2000s, and the overall recovering stage between 2007 and 2016. We also mapped the maximum water inundation extents and frequencies of all-season, pre-wet season (February-May) and post-wet season (September-December) for the 33 years and different sub-periods. Although there is good agreement between time series of surface water area evolution in the New Area and station-based precipitation and evaporation variations, multiple lines of evidences reviewed in previous research indicate that the degraded Baiyangdian Lake was also tightly associated with human activities from various aspects, including dam construction, groundwater extraction, agricultural irrigation, etc. We highlighted the current status of exploring the driving mechanism of surface water changes and existing problems, and then offer recommendations.
Multimetallic AuPd@Pd@Pt core-interlayer-shell icosahedral electrocatalysts for highly efficient oxygen reduction reaction

Incorporating Pt with core metals into Pt-based core-shell catalysts is regarded as a promising strategy to substantially enhance the catalytic properties towards oxygen reduction reaction (ORR) in fuel cells due to the synergetic effect between distinct metals. In this wok, ultrathin Pt skins with two atomic layers were epitaxially coated on as-prepared icosahedral Au_(50)Pd_(50), Au_(60)Pd_(40) and Au_(66)Pd_(34) nanocrystal seeds, which are constructed with alloyed cores and Pd shells with different thickness. Through electron microscopic characterizations, Pd interlayers with tunable thickness of 3, 6, and 12 atomic layers can be found in the Au_(66)Pd_(34)@Pt, Au_(60)Pd_(40)@Pt and Au_(50)Pd_(50)@Pt icosahedra, respectively. These icosahedral AuPd@Pd@Pt nanocrystals show substantially enhanced activities and durabilities in electrocatalytic measurements towards ORR compared to Au_(75)Pd_(25)@Pt icosahedra without Pd interlayer and commercial Pt/C catalysts. Specifically, Au_(60)Pd_(40)@Pt icosahedra with 6 atomically thick Pd interlayer display the best electrocatalytic performances, whose mass activities before and after durability tests of 50,000 cycles are 11.6 and 30.2 times, respectively, as high as that of the commercial Pt/C.
A Heavy Rainfall Event in Autumn over Beijing-Atmospheric Circulation Background and Hindcast Simulation Using WRF

Heavy rainfall events often occur in Beijing during summer but rarely in autumn.However,during 3-5 September 2015,an exceptionally heavy rainfall event occurred in Beijing.Based on the reanalysis data and the Weather Research and Forecasting (WRF) model simulations,the main contributing factors and the predictability of this heavy rainfall event were examined through comprehensive analyses of vorticity advection and water vapor transport/budget.The results indicate that a “high-in-the-east-low-in-the-west"pattern of 500-hPa geopotential height over the Beijing area played an important role.The 850-hPa low-level jet (LLJ) provided a mechanism for rising motion and transported abundant water vapor into the Beijing area.Two-way nested hindcast experiments using WRF well reproduced the atmospheric circulation and LLJ.Quantitative analysis indicates that the WRF model with the rapid update cycle (RUC) land surface scheme and the single-moment 6-class (WSM6) microphysics scheme exhibited the best skill,and the model performance improved with a higher resolution.Further analysis indicates that the bias in the precipitation forecast was caused by the bias in water vapor transport.
Effect of Mesoscale Land Use Change on Characteristics of Convective Boundary Layer: Semi-Idealized Large Eddy Simulations over Northwest China

Although large-scale topography and land use have been properly considered in weather and climate models,the effect of mesoscale and microscale heterogeneous land use on convective boundary layer (CBL) has not been fully understood yet.In this study,the influence of semi-idealized strip-like patches of oases and deserts,which resemble irrigated land use in Northwest China,on the CBL characteristics,is investigated based on the Weather Research and Forecasting (WRF)-large eddy simulation (LES) driven by observed land surface data.The influences of soil water content in oases on aloft CBL flow structure,stability,turbulent kinetic energy (TKE),and vertical fluxes are carefully examined through a group of sensitivity experiments.The results show that secondary circulation (SC)/turbulent organized structures (TOS) is the strongest/weakest when soil water content in oases is close to saturation (e.g.,when the oases are irrigated).With the decrease of soil water content in oases (i.e.,after irrigation),SC (TOS) becomes weak (strong) in the lower and middle CBL,the flux induced by SC and TOS becomes small (large),which has a dramatic impact on point measurement of eddy covariance (EC) fluxes.The flux induced by SC and TOS has little influence on EC sensible heat flux,but great influence on EC latent heat flux.Under this circumstance,the area averaged heat flux cannot be represented by point measurement of flux by the EC method,especially just after irrigation in oases.Comparison of imbalance ratio (i.e.,contribution of SC and TOS to the total flux) reveals that increased soil moisture in oases leads to a larger imbalance ratio as well as enhanced surface heterogeneity.Moreover,we found that the soil layer configuration at different depths has a negligible impact on the CBL flux properties.
Strategies for improving the lithium-storage performance of 2D nanomaterials

2D nanomaterials,including graphene,transition metal oxide (TMO) nanosheets,transition metal dichalcogenide (TMD) nanosheets,etc.,have offered an appealing and unprecedented opportunity for the development of high-performance electrode materials for lithium-ion batteries (LIBs).Although significant progress has been made on 2D nanomaterials for LIB applications in the recent years,some major challenges still exist for the direct use of these sheet-like nanomaterials,such as their serious self-agglomerating tendency during electrode fabrication and low conductivity as well as the large volume changes over repeated charging–discharging cycles for most TMOs/TMDs,which have resulted in large irreversible capacity,low initial Coulombic efficiency and fast capacity fading.To address these issues,considerable progress has been made in the exploitation of 2D nanosheets for enhanced lithium storage.In this review,we intend to summarize the recent progress on the strategies for enhancing the lithium-storage performance of 2D nanomaterials,including hybridization with conductive materials,surface/edge functionalization and structural optimization.These strategies for manipulating the structures and properties of 2D nanomaterials are expected to meet the grand challenges for advanced nanomaterials in clean energy applications and thus provide access to exciting materials for achieving high-performance next-generation energy-storage devices.
The road to chirality-specific growth of single-walled carbon nanotubes

Moore's law has been declared to be eventually nearing its end after nearly five decades,with silicon being the main building block for all computing chips.The main roadblock in the development of transistors is the occurrence of the tunneling effect when the devices become small enough.A possible solution is finding alternative materials to fabricate a ‘millivolt switch',which is at least as fast as silicon counterparts and generates much less heat.Single-walled carbon nanotubes (SWNTs) are regarded as one of the most promising candidates as building blocks in next-generation electronics.The most advanced opportunities demand the ability to form perfectly aligned,horizontal arrays of SWNTs with controlled structure using the chemical vapor deposition (CVD) method.
High loading carbon nanotubes deposited onto porous nickel yarns by solution imbibition as flexible wire-shaped supercapacitor electrodes

The deposition of active materials directly onto metal wires is a general strategy to prepare wire-shaped electrodes for flexible and wearable energy storage devices.However,it is still a critical challenge to coat active materials onto the aimed metal wires because of their smooth surface and small specific surface area.In this work,high porous nickel yarns (PNYs) was fabricated using commercial nylon yarns as templates through step-wise electroless plating,electroplating and calcination processes.The PNYs are composed of multiplied fibers with hollow tubular structure of 5-10 μm in diameter,allowing the imbibition of carbon nanotubes (CNTs) solution by a facile capillary action process.The prepared CNTs/PNY electrodes showed a typical electrochemical double layer capacitive performance and the constructed allsolid flexible wire-shaped symmetric supercapacitors provided a specific capacitance of 4.67 F/cm~3 with good cycling stability at a current density of 0.6 A/cm~3.
Ultrasonic-assisted synthesis of plasmonic Z-scheme Ag/AgCl/WO_3-nanoflakes photocatalyst in geothermal water with enhanced visible-light photocatalytic performance

In this study,the Ag/AgCl/WO_3 plasmonic Z-scheme photocatalysts with different contents of Ag/AgCl nanoparticles (NPs) were prepared through a facile ultrasonic precipitation method in geothermal water,wherein the geothermal water served as the chlorine source.Then the photocatalytic activity was investigated by degradation of 4-Aminobenzoic acid (4-ABA) under visible-light irradiation.It was found that the as-prepared 50 wt% Ag/AgCl/WO_3 photocatalyst showed the highest photocatalytic efficiency with 25.12 and 3.53 times higher than those of pure WO_3 and Ag/AgCl,respectively.The active species trapping experiments indicated that h~+ and·O_2~- were key factors in 4-ABA photodegradation process.The possible plasmonic Z-scheme photocatalytic mechanism of photocatalytic reaction for 4-ABA degradation was proposed based on systematical characterizations.We hope this paper could give new ideas for further exploiting geothermal energy to design and fabricate highly efficient visible-light-driven photocatalysts for environmental remediation.
Modulating the CO methanation activity of Ni catalyst by nitrogen doped carbon

Nitrogen doping has been proved to be an effective way to modify the properties of graphene and other carbon materials.Herein,we explore a composite with nitrogen doped carbon overlayers wrapping SiC substrate as a support for Ni (Ni/CN-SiC) and evaluate its effects on the methanation activity.The results show that both the activity and stability of Ni are enhanced.Characterization with STEM,XRD,XPS,Raman and H_2-TPR indicates that nitrogen doping generates more defects in the carbon overlayers,which benefit the dispersion of Ni.Furthermore,the reduction of Ni is facilitated.
Printed hole-conductor-free mesoscopic perovskite solar cells with excellent long-term stability using PEAI as an additive

Phenethylamine (PEA) was successfully introduced into hole-conductor-free,fully printable mesoscopic MAPbI_3 perovskite solar cells (MPSCs) with a carbon electrode by mixing phenethylammonium iodide with MAPbI_3 perovskite solution.PEA-MAPbI_3 films show better pore filling into TiO_2 scaffold that forms better contact,and induce longer exciton lifetime and higher quantum efficiency of photoinduced charge separation.As a result,the power conversion efficiency of PEA-MAPbI_3 MPSCs is 37% higher than that of MAPbI_3 MPSCs.And PEA-MAPbI_3 MPSCs show excellent long-term stability that could keep 90% of origin power conversion efficiency for over 80 days in the air.