INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
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2024
·
IF 8.1
Ligang Ma,Chao Lin,Wenjun Jiang,Le Xu,Yujie Shao,Tianyu Zhu,Ting Zhao,Xiaoqian Ai,Xiaoshan Wu
In the face of energy scarcity and environmental degradation, photocatalysis emerges as a green and highly efficient method to convert solar energy into a renewable energy source . In this study, CdS nanoparticles were successfully grown in situ along the edges of ZnIn 2 S 4 nanosheets using ultrasound during the synthesis process and the second phase precipitation of In(OH) 3 appeared in the process of preparation. Optimal Cd and S ratios resulted in ZnIn 2 S 4 @In(OH) 3 @CdS heterojunction exhibiting remarkable photocatalytic H 2 production performance compared to standalone ZnIn 2 S 4 and CdS. The internal heterojunction interface within the composite naturally generates an electric field, enhancing carrier separation and facilitating their transport. Additionally, the inclusion of In(OH) 3 further expedites carrier extraction. Ultimately, the mechanism behind the photocatalytic H 2 production was elucidated using the Z-scheme mechanism. This work introduced a novel approach to fabricating multifunctional photocatalysts , presenting a fresh perspective in their design and preparation.
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Nanomaterials
·
2021
·Vol. 11
·期 11
·3122
·
IF 5.076
Rao Fu,Yinyan Gong,Can Li,Lengyuan Niu,Xinjuan Liu
The development of highly active and stable photocatalysts, an effective way to remediate environment pollution and alleviate energy shortages, remains a challenging issue. In this work, a CdIn2S4/In(OH)3nanocomposite was deposited in-situ on NiCr-LDH nanosheets by a simple hydrothermal method, and the obtained CdIn2S4/In(OH)3/NiCr-LDH heterostructure photocatalysts with multiple intimate-contact interfaces exhibited better photocatalytic activity. The photocatalytic H2evolution rate of CdIn2S4/In(OH)3/NiCr-LDH increased to 10.9 and 58.7 times that of the counterparts CdIn2S4and NiCr-LDH, respectively. Moreover, the photocatalytic removal efficiency of Cr(VI) increased from 6% for NiCr-LDH and 75% for CdIn2S4to 97% for CdIn2S4/In(OH)3/NiCr-LDH. The enhanced photocatalytic performance was attributed to the formation of multi-interfaces with strong interfacial interactions and staggered band alignments, which offered multiple pathways for carrier migration, thus promoting the separation efficiency of photo-excited electrons and holes. This study demonstrates a facile method to fabricate inexpensive and efficient heterostructure photocatalysts for solving environmental problems.
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ChemCatChem
·
2025
·
IF 3.9
KunShan Ouyang,Mengyuan Qu,Liyan Xie,Zhishan Luo,Jianqin Chen,Jianhui Huang
CdIn 2 S 4 /In(OH) 3 heterojunctions were constructed via a scalable ultrasonic spray pyrolysis method combined with H 2 O 2 -enabled in situ etching, in order to address the issues of photocorrosion, scarce active sites, and rapid charge recombination observed in pristine CdIn 2 S 4 . The optimized heterojunction, achieved using 50 µL of H 2 O 2 , demonstrates a significantly enhanced H 2 evolution rate of 736 µmol g −1 h −1 , which is 12 times greater than that of pristine CdIn 2 S 4 , along with stable performance throughout three consecutive catalytic cycles. Structural and chemical analyses verify the formation of a closely integrated heterojunction interface, which facilitates improved charge separation and efficient electron transfer from CdIn 2 S 4 to In(OH) 3 , as further corroborated by electrochemical and photoluminescence studies. A possible mechanism for hydrogen evolution is also proposed. Graphical Constructing CdIn 2 S 4 /In(OH) 3 heterojunctions via in situ etching achieves a 12-fold enhancement in photocatalytic H 2 evolution with excellent stability, by enabling efficient electron transfer and charge separation.
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APPLIED SURFACE SCIENCE
·
2022
·
IF 7.392
Xinjuan Du,Jindou Hu,Jing Xie,Aize Hao,Zhenjiang Lu,Yali Cao
The convenient modification of transition metal and the simultaneous adjustment of energy band are effective measures to improve the photocatalytic activity of titanium dioxide but remains challenging in photocatalytic hydrogen evolution field. Herein, In(OH) 3 -TiO 2 heterostructures were constructed by solid-state synthetic strategy under room temperature for tuning the band structure and accelerating the photoexcited charge separation to enhance the photocatalytic activity for hydrogen evolution. By the quantified modification of In(OH) 3 , the obtained In(OH) 3 -TiO 2 delivers an appreciable photocatalytic activity and stability for hydrogen evolution, which is 15.7 folds superior to commercial P25. Due to the narrowed band gap, the increased charge carrier density, the restrained recombination rate of photoexcited electron-hole pairs and the accelerated photogenerated charge separation, the In(OH) 3 -TiO 2 heterostructures thereby achieve the boosted photocatalytic hydrogen evolution performance. This work provides a feasible strategy to enhance the photocatalytic hydrogen evolution of TiO 2 via tuning the band gap and accelerating the photoinduced charge separation.
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SEPARATION AND PURIFICATION TECHNOLOGY
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2025
·
IF 9
Yuanzhi Yue,Guozhe Sui,Yan Zhuang,Dongxuan Guo,Shuang Meng,Dantong Zhang,Xue Yang,Ning Liu,Yue Li,Jinlong Li
In this study, we developed a synergistic modulation strategy through in situ dual-anion/cation doping coupled with vacancy engineering, demonstrating a direct ammonia etching approach to synthesize Cu/S-In(OH) 3 with controlled indium vacancies (V In ) from CuInS 2 precursors. This in situ doping approach provides a uniform distribution of Cu cations and S anions throughout the material, overcoming conventional doping heterogeneity. Simultaneously, an indium vacancy (V In ) structure was precisely engineered and regulated through a growth limitation strategy. The synergistic interplay between the uniformly dispersed anions, cations and V In significantly suppresses the recombination of photogenerated carrier within In(OH) 3 , thereby allowing more carriers to participate in the surface catalytic reaction. Both experimental and theoretical analyses demonstrate that the introduction of V In into the defective states leads to a direct reduction in the band gap, significantly improving photocatalytic hydrogen evolution performance. The optimized Cu/S-In(OH) 3 with V In achieves a photocatalytic hydrogen production rate of 1.22 mmol g −1 h −1 , approximately 122 times higher than that of pure In(OH) 3 (0.01 mmol g −1 h −1 ). This work establishes a paradigm of integrating in situ doping and vacancy engineering strategies to rationally design In(OH) 3 -based materials, offering generalizable principles for advanced catalytic applications.
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INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2020
·
IF 4.939
Hongmei Zhao,Tingting Zhang,Dongyu Shan,Ying Zhu,Ge Gao,Ye Liu,Jing Liu,Meiying Liu,Wansheng You
An intervening barrier for photocatalytic water decomposition and pollutant degradation is the frustratingly quick recombination of e − - h + pairs. Delicate design of heterojunction photocatalysts by coupling the semiconductors at nanoscale with well-matched geometrical and electronic alignments is an effective strategy to ameliorate the charge separation. Here a facile and environment-friendly l -cysteine-assisted hydrothermal process under weakly alkaline conditions is demonstrated for the first time to fabricate ZnIn 2 S 4 /In(OH) 3 hollow microspheres with intimate contact, which are verified by XRD, SEM, (HR)TEM, XPS , N 2 adsorption-desorption, UV–Vis DRS and photoluminescence spectra. ZnIn 2 S 4 /In(OH) 3 heterostructure (L-cys/Zn 2+ = 4, molar ratio) with a band-gap of 2.50 eV, demonstrates the best photocatalytic performance for water reduction and MB degradation under visible light, outperforming its counterparts (In(OH) 3 and ZnIn 2 S 4 ). The excellent activity of ZnIn 2 S 4 /In(OH) 3 heterostructure arises from the intercrossed band-edge positions as well as the unique hollow structure with large surface area and wide pore-size distribution, which are beneficial for the efficient charge migration from bulk to surface as well as at the interface between ZnIn 2 S 4 and In(OH) 3 . This work provides an efficient and eco-friendly strategy for one-pot synthesis of heterostructured composites with intimate contact for photocatalytic application.
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CHEMICAL ENGINEERING JOURNAL
·
2020
·
IF 10.652
Junyu Fan,Meimei Zuo,Zhaoxia Ding,Zhiwei Zhao,Jie Liu,Bo Sun
A promising and practicable catalyst is the key challenge for industrial perspective to promote photocatalytic nitrogen fixation. In this study, a new 0D /2D heterojunction, oxygen vacancy-induced In(OH) 3 /carbon nitride (OV-In(OH) 3 /CN), was synthesized by generating In(OH) 3 nanoparticles on g-C 3 N 4 nanosheets in the presence of glyoxal through a facile and readily precipitation growth method at 60℃and under atmospheric pressure. The existence of oxygen vacancies, structure, morphology and optical-electronic properties of the composite were characterized by HRTEM, XPS and EPR analysis and other measurements. The OV-In(OH) 3 /CN heterojunction exhibited excellent photocatalytic activity for nitrogen fixation with a good chemical stability. The OV-In/CN-3 sample reached the maximum NH 3 generation rate to be 3.81 mM*h −1 *g −1 , which was about 10 times as that of pure g-C 3 N 4 and was also higher than that of other catalysts reported. Though the In(OH) 3 in heterojunction was demonstrated incapable of producing photogenerated electrons under vis-light irradiation, its oxygen vacancy was found to “receive” and “trap” some excited electrons from g-C 3 N 4 , promoting electron-hole pairs separation efficiency and prolonging the lifetime of carriers. And it also can introduce many chemisorption sites for N 2 . Those are the two key reasons for its high photocatalytic activity.
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CONSTRUCTION AND BUILDING MATERIALS
·
2025
·
IF 8
Kai Ma,Xingyu Gan,Weichao Li,Laibo Li,Lingchao Lu,Haiming Zhang
Carbon sequestration of cement-based composites is an essential pathway towards the strategic goal of achieving carbon neutrality. However, the efficiency of cement-based composites to sequester carbon dioxide (CO 2 ) is limited. Inspired by legume structure, a sandwich-structured graphene oxide embedded with In(OH) 3 (SGOI) was synthesized to simultaneously enhance the CO 2 sequestration capacity, hydration kinetics, and mechanical performances of cement-based composites. The effect of SGOI content on the CO 2 sequestration capacity, hydration kinetics, and mechanical performances of cement-based composites was evaluated. The results show that the CO 2 sequestration, compressive strength, flexural strength, and eco-mechanical index of the hardened cement paste containing 0.03 wt% SGOI were achieved 52.55 g/kg, 105.1 MPa, 13.9 MPa, and 0.75 kgCO 2 /MPa, representing enhancements of 255.07 %, 32.70 %, 34.95 %, and 167.86 % compared to those of cement paste without SGOI, respectively. Meanwhile, the hydration reaction rate and hydration degree of cement at each stage were improved. The enhancement of these parameters is derived from the structural characteristics of SGOI, including the specific surface area (30.52 m 2 /g), interlayer distance (14.85 nm), and roughness (14.10 nm). One ton of hardened cement paste containing 0.03 wt% SGOI can sequestrate at least 31.09 kg of CO 2 within 28 days, highlighting its significant potential for promoting CO 2 neutrality.
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JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2015
·Vol. 26
·期 9
·6612-6624
·
IF 1.569
Wang Jingchao,Wang Linlin,Gao Jun,Zhou Ling,Ge Yunlong,Jing Liqiang,Shi Keying,Li Li
The 3D flower-like mesoporous hierarchical architecture materials were fabricated via a facile one-pot reflux method. The composites were carefully characterized by XRD, SEM, BET, XPS, EIS and MS plot measurements. The results indicated that the morphology of the obtained products could be controlled by adjusting the reaction time, and the sample with the mass ratio of 30 % In(NO 3 ) 2 ·6H 2 O/Ni(NO 3 ) 2 ·6H 2 O (labeled as NIDH-30) formed 3D flower-like mesoporous hierarchical architecture, which was composed of nanopetals with porous thin nanosheets and the size of In(OH) 3 nanoparticles around 8–13 nm. As a result, NIDH-30 exhibited excellent sensing properties at ultra low detection limit of 9.7 ppb for detection of NO x . The response toward 97 ppm NO x could reach to 60 % and the response time was 1.2 s. Moreover, it showed a great selectivity and stability at room temperature. The excellent gas sensing performance could be ascribed to higher surface area and space-charge layer which induce the highly effective surface interaction between the target gas molecules and the surface active sites. Synergetic effect and electronic effect also favoring the effective adsorption of NO x on the surface. All the factors were obviously beneficial for the mesoporous hierarchical Ni(OH) 2 –In(OH) 3 double hydroxide composites as gas sensor for monitoring air pollution.
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INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2021
·
IF 5.816
Hairus Abdullah,Riski Titian Ginting,Refi Ikhtiari,Noto Susanto Gultom,Hardy Shuwanto,Dong-Hau Kuo
Configurational entropy composites of In-doped Zn(O,S)/Zn-doped In(OH) 3-x S x has been synthesized with a one-step hydrothermal method and carefully characterized with XRD , XPS , SEM, TEM, DRS , PL , EIS , TPC , CV , and MS analyses. The composites were prepared with different sulfur amounts to obtain the optimum performance of visible-light photocatalytic HER . The primary phases of ZnS and In(OH) 3 were formed after the hydrothermal process. However, the results indicated In and O were doped into ZnS lattice and induced lower bandgap values (~2.71–2.84 eV) which are active in visible-light illumination. Simultaneously, the excess Zn and S were also doped to In(OH) 3 with lower bandgap values (~3.38–4.63 eV). The variation of bandgap values is due to the hybridization of In 5s5p to Zn 4s4p and O 2p to S 3p orbitals. As a result, In-doped Zn(O,S) and Zn-doped In(OH) 3-x S x will be a visible-light active material for photoreaction and a favorable phase for electron transfer , respectively. Furthermore, it is also related to a possible antisite-defect formation with I n Z n + to help the electron trapping and enhance the photocarrier separation, leading to an efficient photocatalytic activity . ZI-S1 with additional 5-mmol thioacetamide was found as the catalyst with the highest HER performance which achieved 730 μmol/g·h under visible-light illumination. A plausible photocatalytic HER mechanism is discussed and proposed in this work.
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ACS Sensors
·
2025
·
IF 9.1
Xiao Ma,Rong Tan,Hong Chen,Jiawei Zhang,Lei Ge,Tingting Zhao,Xinyu Wang,Kaikai Yuan,Hairui Fang,Dong Wang
Nitrogen dioxide (NO2), the main component of pollutants in atmospheric environments, causes and exacerbates respiratory diseases, especially during outdoor sports even at the 100 ppb level. Currently, environmental gas detection still faces challenges such as high detection limits, low SNR, and low sensitivity. A NO2 sensor based on In(OH)3-α-Fe2O3–ZnO was prepared using a hydrothermal method, featuring an ultralow detection limit of 82 ppt, an exceptionally high SNR of 574,000, and an ultrahigh sensitivity of 252.25 mV/ppm (100 ppb to 1 ppm). And this sensor exhibits excellent response, selectivity, and repeatability. These excellent sensing characteristics come from the adsorbed oxygen on the surface of the material with the formation of n–n heterojunctions. Additionally, a low-power, portable, and cost-effective environmental monitoring system (named Smart Breath Sentinel (SBS)) was designed to intelligently upgrade ordinary masks. SBS enables real-time wireless environmental gas monitoring with integrated humidity compensation to ensure accurate measurements in high-humidity environments. SBS has already been tested in multiple environments, and the test results have proven the feasibility of SBS. This sensor based on In(OH)3-α-Fe2O3–ZnO demonstrates significant potential for applications aimed at enhancing human safety.
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