Article
Materials Science, Multidisciplinary
Rivaldo Marsel Tumbelaka, Nurul Imani Istiqomah, Takeshi Kato, Daiki Oshima, Edi Suharyadi
Summary: This study investigated the photocatalytic degradation performance of Fe3O4/TiO2 nanoparticles synthesized using Moringa oleifera leaf extract. The green-synthesized nanoparticles showed good magnetic properties and could be reused. The optimal degradation efficiency for methylene blue was achieved at a concentration of 1:7 Fe3O4:TiO2, reaching a degradation rate of 99.9% in two hours.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Wei Wen, Jianhang Hai, Jincheng Yao, Yi-Jie Gu, Hisayoshi Kobayashi, He Tian, Tulai Sun, Qiongyang Chen, Peng Yang, Chao Geng, Jin-Ming Wu
Summary: Strain engineering is an effective method for optimizing the properties of materials, but traditional methods that impose strain from an additional substrate can disrupt investigations into the effects of lattice parameters. This study introduces a novel precursor-induced growing method to elongate the lattice parameter of anatase TiO2, resulting in enhanced photocatalytic activity and reduction capability without changing the material's composition, morphology, phase, or surface states.
CHEMISTRY OF MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Syed Shahabuddin, Shahid Mehmood, Irfan Ahmad, Nanthini Sridewi
Summary: 2D-WS2 incorporated polyaniline nanocomposites (WS2-PANI) with varying WS2 loadings were synthesized via an easy in situ oxidative polymerization technique, which effectively enhanced the photocatalytic degradation of methylene blue (MB) in wastewater. The physicochemical properties of WS2-PANI (1-5) nanocomposites were characterized using various techniques such as FT-IR, XRD, BET surface area, TGA, FESEM, and HRTEM. HRTEM analysis confirmed the layered structure of WS2 with periodic planes (100) separated by 0.27 nm. Under UV photo irradiation, WS2-PANI (1-5) demonstrated excellent photocatalytic performance for MB degradation, with 2 wt.% WS2-PANI showing the highest efficiency of 93% degradation within 90 minutes. Moreover, the catalytic material exhibited good reusability without significant loss of catalytic performance, even after five cycles.
Article
Engineering, Environmental
Qiang Li, Lijie Wang, Jupu Song, Linshen Zhang, Chunfeng Shao, Hong Li, Hemin Zhang
Summary: A novel S-scheme heterojunction of In2S3/Bi2WO6 hybrid catalyst was synthesized by assembling In2S3 nanoparticles on Bi2WO6 microsphere through a simple precipitation route. The resulting materials were characterized for their morphology, structures, composition, chemical and optical properties. The In2S3/Bi2WO6 composites exhibited superior photocatalytic behavior for dyes decomposition and showed good stability and reusability. The improved photoactivity was attributed to the formation of S scheme heterojunction, which facilitated photocarriers disassociation and maintained strong redox power. The decomposition pathway of Rhodamine B was revealed and the S-scheme charge transfer mechanism was elucidated.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Physical
P. Gnanamozhi, A. Monamary, S. David Jereil, J. Evangeline Pauline, J. Andrew Oswin Ratnam, A. Ganeshkumar, V. Pandiyan, Asma A. Alothman, Razan A. Alshgari, Mani Govindasamy
Summary: The study aims to eliminate toxic dyes in industrial wastewater by using aluminum-substituted zinc oxide nanoparticles before they enter water bodies. The substitution of aluminum modifies the crystal structure and enhances the optical absorption, thereby improving the photocatalytic activity of zinc oxide nanoparticles.
SURFACES AND INTERFACES
(2023)
Article
Engineering, Environmental
Lili Chen, Xuemei Ren, Njud S. Alharbi, Changlun Chen
Summary: In this study, Co/Ni-MOFs@BiOI composites were successfully synthesized as a novel light-driven photocatalyst, greatly enhancing visible light absorption and promoting the photocatalytic degradation of cationic methylene blue without the need for any chemical additives. The composites also demonstrated efficient degradation of other dyes under visible light irradiation, with the primary reactive species being superoxide radicals.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Environmental Sciences
Sucheewan Krobthong, Tipawan Rungsawang, Sutthipoj Wongrerkdee
Summary: ZnO nanoparticles were synthesized using precipitation and combustion techniques. The precipitation method resulted in larger crystal sizes compared to the combustion method, while the particle sizes were similar. The functional analysis revealed surface defects in the ZnO structures. In the photocatalytic degradation of methylene blue, ZnO precipitation exhibited better degradation performance due to its larger crystal sizes, which facilitated carrier movement and reduced electron-hole recombination. The crystallinity of ZnO nanoparticles is thus an important factor in photocatalytic activity. Furthermore, precipitation is an interesting method for synthesizing ZnO nanoparticles with large crystal sizes.
Article
Environmental Sciences
M. Faisal, Md Abu Rashed, Jahir Ahmed, Mabkhoot Alsaiari, Mohammed Jalalah, Saeed A. Alsareii, Farid A. Harraz
Summary: This study focuses on the design and development of ultrafast smart ternary photocatalysts containing SrSnO3 nanostructures, chitosan (CTSN), and silver (Ag) nanoparticles. The results demonstrate that the Ag@CTSN/SrSnO3 photocatalyst exhibits significantly improved efficiency in removing antibiotics and dyes compared to bare SrSnO3, providing a promising and effective solution for environmental pollution management.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Crystallography
Waleed M. Alamier, Medhat Mohamed El-Moselhy, Ayyob M. Bakry, Nazim Hasan, Abdullah Ali Alamri
Summary: Biogenic synthesis of nanoparticles using plant extract is a promising trend to reduce chemical consumption and avoid wastewater treatment complications. In this study, zero-valent Fe/Fe3O4 nanoparticles were synthesized using Caralluma acutangula (CA) plant and applied for the photodegradation of Methylene blue dye.
Article
Chemistry, Physical
Giin-Shan Chen, Jiun-Heng Chen, Jenan Kuo, Huan Niu
Summary: The study found that when using soda-lime glass as the substrate material, during annealing and soaking, the TiO2-WO3 film was affected by sodium, forming highly crystallized mesoporous anatase film with excellent photocatalytic activity.
APPLIED SURFACE SCIENCE
(2021)
Article
Environmental Sciences
Ming Guo, Yinglu Hu, Rui Wang, Hongwei Yu, Liping Sun
Summary: ZnO quantum dots were synthesized and CuFe2O4 nanoparticles were prepared to fabricate ZnO/CuFe2O4 composites, followed by the production of a specific molecule recognition photocatalyst (ZCF@MB-MIP) using methylene blue as the template molecule. The ZCF@MB-MIP showed efficient photocatalytic degradation of methylene blue under natural light, with a degradation rate of 95.8%.
ENVIRONMENTAL RESEARCH
(2021)
Article
Environmental Sciences
Sutthipoj Wongrerkdee, Sawitree Wongrerkdee, Chatdanai Boonruang, Supphadate Sujinnapram
Summary: ZnO and Ti-ZnO nanoparticles were synthesized using rapid combustion. The Ti-ZnO exhibited a specific surface area two times higher than that of ZnO, leading to a significant improvement in the photocatalytic degradation of methylene blue.
Article
Chemistry, Physical
Minggui Wang, Xu Wang, Min Wang, Jie Han
Summary: In this study, hierarchical heterojunctions of mesoporous In2O3 nanorods/In2S3 nanosheets were constructed, and the content of In2S3 nanosheets was regulated by changing the amount of thioacetamide. The constructed heterojunctions exhibited enhanced specific surface area, visible light absorption, and improved photocatalytic performance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Environmental Sciences
Mani Preeyanghaa, M. D. Dhileepan, Jagannathan Madhavan, Bernaurdshaw Neppolian
Summary: In this study, a novel g-CN/BiOBr/Fe(3)O(4) nanocomposite was prepared using a simplified method and evaluated for the photodegradation of model tetracycline antibiotics. The nanocomposite exhibited high degradation and mineralization efficiency under simulated light irradiation, thanks to its extended visible light harvesting ability and efficient charge separation. It also possesses magnetic retrievability and retains stable photocatalytic performance.
Article
Nanoscience & Nanotechnology
Truong Thi Phuong Nguyet Xuan Trinh, Nguyen Thi Huong Giang, Le Minh Huong, Doan Ba Thinh, Nguyen Minh Dat, Dinh Ngoc Trinh, Nguyen Duy Hai, Doan Thi Yen Oanh, Hoang Minh Nam, Mai Thanh Phong, Nguyen Huu Hieu
Summary: Titanium dioxide/graphene aerogel was synthesized and characterized. The photocatalytic performance of TiO2/GA was studied, and its potential application in wastewater treatment was demonstrated.
JOURNAL OF SCIENCE-ADVANCED MATERIALS AND DEVICES
(2022)
Article
Chemistry, Physical
Wei Li, Xiao Wang, Qiong Ma, Fei Wang, Xiao-shan Chu, Xue-chuan Wang, Chuan-yi Wang
Summary: This study successfully enhanced the hydrogen evolution activity under solar light by constructing a CdS@h-BN/rGO catalyst, which exhibited excellent photoresponse and interfacial conductivity.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Chemistry, Physical
Wei Li, Xiao-shan Chu, Fei Wang, Yan-yan Dang, Xiao-yun Liu, Xue-chuan Wang, Chuan-yi Wang
Summary: The construction of a 3D porous g-C3N4/GO skeleton aided by graphene oxide, with the immobilization of precious-metal cocatalysts, significantly enhances the photocatalytic hydrogen production under simulated solar light. The improved anchoring stability of cocatalysts and increased active sites due to electron acceptors contribute to the enhanced performance of the resulting 3D p-CNG-M composite catalysts.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Chemistry, Physical
Wei Li, Fei Wang, Xiao-shan Chu, Xiao-yun Liu, Yan-yan Dang
Summary: In this study, a 3D porous carbon-doped h-BN/rGO hybrid was successfully prepared with an enhanced hydrogen evolution reaction (HER) performance. The improved photoresponsivity and electrochemical property, as well as excellent durability in pH=8.5, were achieved through the synergistic effect of h-BN/rGO heterointerface and carbon-doping strategy.
APPLIED SURFACE SCIENCE
(2021)
Article
Engineering, Environmental
Wei Li, Fei Wang, Xiao-shan Chu, Yan-yan Dang, Xiao-yun Liu, Tenghao Ma, Jia-yuan Li, Chuan-yi Wang
Summary: Solar-induced water splitting is a promising method for hydrogen production, and MoS2 is an important material for synthesizing efficient photocatalysts. By embedding MoS2 nanostructures on a 3D porous BN/rGO skeleton, the BNG-M composite showed enhanced HER rate and durability, with abundant active sites and fast interfacial charge mobility. The catalyst also displayed high photoresponsivity and outperformed many reported MoS2 and BN based catalysts.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Wei Li, Xiao-shan Chu, Fei Wang, Yan-yan Dang, Xiao-yun Liu, Teng-hao Ma, Jia-yuan Li, Chuan-yi Wang
Summary: This study presents a CdS-Pd nanocatalyst with improved stability and activity for solar-induced overall water splitting. The CdS-Pd nanocatalyst showed 110-fold higher activity than pristine CdS. It also demonstrated high apparent quantum yields under broadband light illumination. The findings provide important insights for the development of stable and efficient CdS-based photocatalysts for hydrogen production.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Physical
Xiao-Li Hao, Xiao-Shan Chu, Ke-Ling Luo, Wei Li
Summary: Under light induction, a CdS nanocatalyst decorated with Au single-atom sites was used to efficiently catalyze the ATRA reaction under mild conditions, exhibiting higher yields and selectivity compared to existing reaction systems.
JOURNAL OF CATALYSIS
(2022)
Article
Chemistry, Multidisciplinary
Wei Li, Teng-Hao Ma, Yan-Yan Dang, Xiao-Yun Liu, Jia-Yuan Li, Chuan-Yi Wang
Summary: In this study, a stable transition metal sulfide (TMS)-based photocatalyst with high photoactivity for hydrogen production was achieved by growing ultrafine MoS2 as a co-catalyst on the surface of Sb2S3 nanorods to form a type-II heterostructured catalyst. The obtained heterostructured catalyst exhibited significantly improved broadband-light harvesting and had 34.9-fold and 11.7-fold higher hydrogen evolution reaction photoactivity compared to bare Sb2S3 and MoS2, respectively, under simulated sunlight irradiation. The coordination interactions at the heterointerface provided highly enhanced photostability.
ADVANCED MATERIALS INTERFACES
(2022)
Article
Chemistry, Physical
Wei Li, Fei Wang, Xiao-yun Liu, Yan-yan Dang, Jia-yuan Li, Teng-hao Ma, Chuan-yi Wang
Summary: By introducing N heteroatoms into the lattice of hexagonal CdS nanoparticles, N-doped CdS nanocatalysts were prepared. The synergetic promotion of heteroatom-semiconductor coordination (HSC) interaction effectively improved the utilization of photoexcited carriers, resulting in high apparent quantum yield. Under simulated sunlight irradiation, the nanocatalyst exhibited high hydrogen evolution rate with excellent photostability.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Physical
Xiao-li Hao, Xiao-shan Chu, Xiao-yun Liu, Wei Li
Summary: Solar driven water-to-hydrogen conversion is a promising technology. Researchers achieved high photocatalytic HER activity by decorating single-atomic Pt on the surface of CdS nanoparticles, which promoted the migration of photo-carriers.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Green & Sustainable Science & Technology
Wei Li, Yan-yan Dang, Xiao-li Hao, Fei Wang, Xiao-yun Liu, Chen-hui Zhao
Summary: This study improves the performance and stability of cadmium sulfide photocatalyst by doping glucose as a carbon heteroatom precursor, achieving higher efficiency of light-to-hydrogen conversion.
Article
Chemistry, Multidisciplinary
Wei Li, Jiayuan Li, Tenghao Ma, Guocheng Liao, Fanfan Gao, Wen Duan, Keling Luo, Chuanyi Wang
Summary: The formation of a uniform mesoporous CdS shell on the surface of Sb2S3 nanorods (NRs) via a surface cationic displacement strategy constructs the core-shell Sb2S3@CdS heterojunction with high BET surface area and excellent near-infrared light harvesting capacity. The Sb-S-Cd bonding interaction and van der Waals force significantly enhance the stability and synergy of Sb2S3/CdS heterointerface throughout the entire surface of Sb2S3 NRs, promoting the Sb2S3-to-CdS electron transfer due to the formation of built-in electric field. Therefore, the optimized Sb2S3@CdS catalyst achieves highly enhanced simulated sunlight-driven Cr(VI) reduction and decomplexation of complexed Cr(III), resulting in effective chromium-containing wastewater treatment.
Article
Energy & Fuels
Wei Li, Yanyan Dang, Tenghao Ma, Jiayuan Li, Guocheng Liao, Fanfan Gao, Wen Duan, Xuechuan Wang, Chuanyi Wang
Summary: A photoreduction method was used to immobilize Ni single atoms on CdS nanoparticles, forming an electric metal-semiconductor interaction (EMSI) that greatly promoted H2O-to-H-2 conversion under simulated sunlight. The nanocatalyst with 1.25‰ Ni loading achieved the highest conversion rate and photostability, along with improved light absorption capacity and photexciton utilization efficiency. Under alkaline conditions, OH- ions reacted with photogenerated holes to inhibit oxidation and enhance conversion performance. This study provides insights for improving photocatalyst performance through non-noble metallic single-atom cocatalysis.
Article
Engineering, Environmental
Wei Li, Yanyan Dang, Jiayuan Li, Tenghao Ma, Guocheng Liao, Fanfan Gao, Wen Duan, Ji Li, Xuechuan Wang, Chuanyi Wang
Summary: This study explores the influence of the morphological characteristics of hexagonal cadmium sulfide nanoparticles and nanorods on the photocatalytic performance of hydrogen production. It is found that the size difference between the nanoparticles and nanorods leads to different nanoconfinement effects, affecting the separation and migration kinetics of photoexcitons and thus the catalytic performance. By synthesizing CdS nanoparticles and nanorods and decorating them with single-atomic titanium, two forms of nano-confined systems are constructed. The results show that CdS nanoparticles, under the three-dimensional nanoconfinement dynamics, have a significant inhibitory effect on the migration of photoexcitons, resulting in higher photocatalytic hydrogen production under simulated sunlight conditions.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Chen-Hui Zhao, Ke-Ling Luo, Wei Li
Summary: In this study, a MoS2/CoP heterostructure was synthesized as a photocatalyst, which demonstrated a Z-scheme electron transfer mechanism that effectively suppressed photoinduced carrier recombination and achieved enhanced hydrogen evolution activity under simulated solar light.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Chemistry, Multidisciplinary
Zhen-yu Zhu, Jia-yuan Li, Wei Li, Xiao-yun Liu, Yan-yan Dang, Teng-hao Ma, Chuan-yi Wang
Summary: Photocatalysis technology is a promising strategy for Cr(vi) pollution in wastewater. However, the instability of traditional transition metal sulfides (TMSs) under light-irradiation limits their photoactivity. In this study, a novel heterostructured catalyst was developed by uniformly anchoring CdS nanoparticles on the surface of Sb2S3 nanorods. The optimized catalyst exhibited significantly enhanced photoactivity for Cr(vi) reduction, surpassing bare Sb2S3 by approximately 138 times.
ENVIRONMENTAL SCIENCE-NANO
(2022)
