PMID- 34826902 OWN - NLM STAT- MEDLINE DCOM- 20211130 LR - 20211130 IS - 1879-1298 (Electronic) IS - 0045-6535 (Linking) VI - 287 IP - Pt 2 DP - 2022 Jan TI - Visible light photodegradation of 2,4-dichlorophenol using nanostructured NaBiS(2): Kinetics, cytotoxicity, antimicrobial and electrochemical studies of the photocatalyst. PG - 132174 LID - S0045-6535(21)02646-1 [pii] LID - 10.1016/j.chemosphere.2021.132174 [doi] AB - Removal of the hazardous and endocrine-disrupting 2,4-dichlorophenol (2,4-DCP) from water bodies is crucial to maintain the sanctity of the ecosystem. As a low bandgap material (1.37 eV), NaBiS(2) was hydrothermally prepared and used as a potential photocatalyst to degrade 2,4-DCP under visible light irradiation. NaBiS(2) appeared to be highly stable and remained structurally undeterred despite thermal variations. With a surface area of 6.69 m(2)/g, NaBiS(2) has enough surface-active sites to adsorb the reactive molecules and exhibit a significant photocatalytic activity. In alkaline pH, the adsorption of 2,4-DCP on NaBiS(2) appeared to decrease whereas, the acidic and neutral environments favoured the degradation. An increase in the photocatalyst dosage enhanced the degradation efficiency from 81 to 86 %, because of higher vacant adsorbent sites and the electrostatic attraction between NaBiS(2) and 2,4-DCP. The dominant scavengers degraded 2,4-DCP by forming a coordination bond between chlorine's lone pair of electrons and the vacant orbitals of bismuth, following the order hole> OH > singlet oxygen. Being non-toxic to both natural and aquatic systems, NaBiS(2) exhibits antifungal properties at higher concentrations. Finally, the electron-rich NaBiS(2) is an excellent electrocatalyst that effectively degrades organic pollutants and is a promising material for industrial and environmental applications. CI - Copyright (c) 2021 Elsevier Ltd. All rights reserved. FAU - Kumar, V G Dileep AU - Kumar VGD AD - Centre for Incubation, Innovation, Research and Consultancy (CIIRC) and Department of Chemistry, Jyothy Institute of Technology, Tataguni, Off Kanakapura Road, Bangalore, 560082, Karnataka, India; Department of Chemistry, PES University, 100 Ft. Ring Road, BSK 3rd Stage, Bangalore, 560085, Karnataka, India. FAU - Balaji, K R AU - Balaji KR AD - Centre for Incubation, Innovation, Research and Consultancy (CIIRC) and Department of Chemistry, Jyothy Institute of Technology, Tataguni, Off Kanakapura Road, Bangalore, 560082, Karnataka, India; Visvesvaraya Technological University, Jnana Sangama, Belgaum, 590018, Karnataka, India. FAU - Viswanatha, R AU - Viswanatha R AD - Centre for Incubation, Innovation, Research and Consultancy (CIIRC) and Department of Chemistry, Jyothy Institute of Technology, Tataguni, Off Kanakapura Road, Bangalore, 560082, Karnataka, India. FAU - Ambika, G AU - Ambika G AD - Centre for Incubation, Innovation, Research and Consultancy (CIIRC) and Department of Chemistry, Jyothy Institute of Technology, Tataguni, Off Kanakapura Road, Bangalore, 560082, Karnataka, India. FAU - Roopa, R AU - Roopa R AD - Centre for Incubation, Innovation, Research and Consultancy (CIIRC) and Department of Chemistry, Jyothy Institute of Technology, Tataguni, Off Kanakapura Road, Bangalore, 560082, Karnataka, India. FAU - Basavaraja, B M AU - Basavaraja BM AD - Department of Chemistry, PES University, 100 Ft. Ring Road, BSK 3rd Stage, Bangalore, 560085, Karnataka, India. Electronic address: bmbasavaraja@pes.edu. FAU - Chennabasappa, Madhu AU - Chennabasappa M AD - Department of Physics, Siddaganga Institute of Technology, B.H. Road, Tumakuru, 572103, India. FAU - Kumar, C R Ravi AU - Kumar CRR AD - Research Centre, Department of Science, East West Institute of Technology, Bangalore, 560091, Karnataka, India. FAU - Chen, Zhong AU - Chen Z AD - School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore. FAU - Bui, Xuan-Thanh AU - Bui XT AD - Faculty of Environment and Natural Resources, University of Technology, Vietnam National University - Ho Chi Minh, Ho Chi Minh City, 700000, Viet Nam; Key Laboratory for Advanced Waste Treatment Technology, Vietnam National University - Ho Chi Minh, Ho Chi Minh City, 700000, Viet Nam. FAU - Santosh, M S AU - Santosh MS AD - Coal and Mineral Processing Division, CSIR - Central Institute of Mining and Fuel Research (CIMFR), Digwadih Campus, PO: FRI, Dhanbad, 828108, Jharkhand, India. Electronic address: santoshms@cimfr.nic.in. LA - eng PT - Journal Article DEP - 20210914 PL - England TA - Chemosphere JT - Chemosphere JID - 0320657 RN - 0 (Anti-Infective Agents) RN - 0 (Chlorophenols) RN - R669TG1950 (2,4-dichlorophenol) SB - IM MH - *Anti-Infective Agents MH - Catalysis MH - Chlorophenols MH - *Ecosystem MH - Kinetics MH - Light MH - Photolysis OTO - NOTNLM OT - 2,4-DCP OT - Kinetics OT - NaBiS2 OT - Photodegradation OT - Visible light EDAT- 2021/11/28 06:00 MHDA- 2021/12/01 06:00 CRDT- 2021/11/27 01:00 PHST- 2021/07/01 00:00 [received] PHST- 2021/08/30 00:00 [revised] PHST- 2021/09/03 00:00 [accepted] PHST- 2021/11/27 01:00 [entrez] PHST- 2021/11/28 06:00 [pubmed] PHST- 2021/12/01 06:00 [medline] AID - S0045-6535(21)02646-1 [pii] AID - 10.1016/j.chemosphere.2021.132174 [doi] PST - ppublish SO - Chemosphere. 2022 Jan;287(Pt 2):132174. doi: 10.1016/j.chemosphere.2021.132174. Epub 2021 Sep 14.