Authors: Dayana Kila | Abdul Putri | Watoni Haris | La Ode | Ahmad Ramadhan | P Sharma | S Singh | S Parakh | Y Tong | A Shraim | M Ahmad | M Rahman | J Ng | C Santarcangelo | A Baldi | R Ciampaglia | M Dacrema | A Di Minno | V Pizzamiglio | G Tenore | M Daglia | L Dai | Y Wang | X Zou | Z Chen | H Liu | Y Ni | N Nurhidayah | L Ramadhan | A Watoni | L Kadir | M Rahmatullah | C Haruna | S Silviana | F Santo Khoirudin | F Pratama | R Harahap | A Hasanah | Q Ruhmaningrum | C Salsabila | G Mei | P Menon | G Hegde | A Tereshchenko | M Bechelany | R Viter | V Khranovskyy | V Smyntyna | N Starodub | R Yakimova | D Obolskiy | I Pischel | N Siriwatanametanon | M Heinrich | Kila Dayana Putri ; Radzimska | A Jesionowski | T Krysztafkiewicz | A | W Jia | S Dang | Z Zhang | C Yu | X Liu | B Xu | K Kumar | B Mandal | E Naidu | M Sinha | P Reddy | T Mahato | G Prasad | B Singh | J Acharya | A Srivastava | R Vijayaraghavan | A Ismail | A El-Midany | E Abdel-Aal | H El-Shall | L Dem'yanets | L Li | T Uvarova | A Koodziejczak-Radzimska | E Markiewicz | T Jesionowski | D Ch En | Iao | P Li | Y Wei | X Wang | X Li | G He | G Xiao | M Wang | S Vorobyova | A Lesnikovich
Source: Malaysian Journal of Chemistry (article, 2025-04-17)
Field: Materials Science — Materials Chemistry

Purified Mangosteen Peel Extract Mediated-Green Synthesis of Nanostructure Zinc Oxide Incorporated into a Nata de Sago Bacterial Cellulose Transparent Film for UV-Visible Spectroscopy Detection of Hexavalent Chromium in Aqueous Media This article reports the green synthesis of zinc oxide (ZnO) nanostructures using a purified mangosteen peel extract as a plasmonic dopant in Nata de Sago bacterial cellulose transparent films used for the detection of hexavalent chromium (Cr(VI)) in aqueous media by UV-Vis spectroscopy.Purification of the mangosteen extract produced an ethyl acetate-n-hexane fraction and an ethyl acetate-methanol fraction, which act as a reducing agent and capping agent.UV-Vis characterization showed stable ZnO nanostructures with consistent surface plasmon resonance (SPR).FTIR analysis identified -OH, C-H, and Zn-O functional groups, while PSA showed the particle size of ZnO-FEM was smaller (below 100 nm) than ZnO-FEN.SEM and XRD analyses showed that ZnO-FEM had a more dispersed morphology and a smaller crystallite size (8.91-65.92nm).ZnO-FEM showed superior optical properties with stable fluorescence intensity at an excitation wavelength of 500 nm and a low band gap energy of 1.926 eV.Detection of Cr(VI) by UV-Vis spectrophotometry in the concentration range of 0.01 -1 ppm using ZnO-FEM 40:50 transparent film showed a good linear relationship (R = 0.9996), good sensitivity with a slope value of 0.6353, good accuracy (102 % recovery) and precision (0.09 % RSD) with an LOD of 0.0138 ppm and LOQ of 0.0188 ppm.The results indicate that the ZnO-FEM 40:50 transparent film has good potential as an optical sensor for Cr(VI) detection by UV-Vis spectrophotometry. Zinc ; Hexavalent chromium ; Cellulose ; Nuclear chemistry ; Chromium ; Aqueous solution ; Materials science ; Chemistry ; Organic chemistry Advanced Nanomaterials in Catalysis ; Adsorption and biosorption for pollutant removal