CHEMICAL ENGINEERING JOURNAL
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2019
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IF 8.355
Yan Zhuang,Jingfei Luan
Novel peony-like InOOH photocatalyst was firstly obtained with the help of glycerol in the solvothermal process, whose optimal proportion of glycerol was determined to be 25%. X-ray diffraction, scanning electron microscope, X-ray energy dispersion spectrum, transmission electron microscopy, X-ray photoelectron spectroscopy and UV–visible diffusion reflectance spectrum were obtained and analyzed to reveal the structure, morphology, physical and chemical properties of synthesized samples. The results indicated that the synthesized InOOH was orthorhombic structure with the peony-like morphologies, whose average particle size was 2–5 µm approximately. The band-gap of the peony-like InOOH was estimated to be 3.65 eV. The photocatalytic activities of the samples were investigated by degrading norfloxacin under UV-light irradiation, which followed the first-order reaction kinetics. The degradation efficiency of peony-like InOOH could reach up to 98.84%. And the first order kinetic constant of peony-like InOOH was 0.01519 min −1 , which was about 4.8 times or 1.7 times than that of hexagram-like InOOH or InOOH nanosheet. The peony-like InOOH showed the most superior photocatalytic performance compared with hexagram-like InOOH and InOOH nanosheet, which originated from its high separation efficiency and low recombination rate of photoproduction electron-hole pairs. The reduction of total organic carbon revealed the mineralization of norfloxacin during the photocatalytic process. Finally, O 2 − radicals were proved to be main reactive species during the degradation process of norfloxacin. Furthermore, the degradation pathway and the degradation mechanism of norfloxacin with peony-like InOOH as catalyst were discussed in detail.
研究领域:
环境科学
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材料科学
✓ 已验证
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2021
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IF 8.128
Peng Wang,Xibin Zhou,Yu Shao,Danzhen Li,Zhongfu Zuo,Xuezheng Liu
For the first time, CdS quantum dots (QDs)-decorated InOOH (CdS-In for short) was synthesized by a facile photodeposition method. The experiment results showed that CdS-In samples exhibited excellent activity and stability towards photocatalytic reduction of nitro aromatics. The conversion ratio of 4-nitroaniline (4-NA) over CdS-In sample that was prepared with photodeposition time of 120 min (CdS-In-120) reached up to 99.4% under visible light irradiation for 40 min, which was even higher than that achieved over commercial CdS (86.2%). Besides the significant enhancement of visible light absorption, quantum sized CdS were decorated evenly on the surface of InOOH, which was very beneficial for the high activity. Furthermore, the heterogeneous junction formed at the interface of CdS QDs and InOOH can significantly increase the separation efficiency of photogenerated charge carriers. Active species control experiment and electron spin resonance (ESR) technique have proved that photogenerated electrons are the main active species towards photocatalytic reduction of nitro aromatics. It is anticipated that our study would offer meaningful insights for exploring novel InOOH-based visible light photocatalysts towards efficient reduction of nitro aromatics.
研究领域:
材料科学
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环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
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2023
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IF 9.5
Tian Zhang,Qiang Zheng,Congkun Xie,Gonglin Fan,Yifan Wang,Yongjun Wu,Yike Fu,Jie Huang,Duncan Q. M. Craig,Xiujun Cai,Xiang Li
As a result of their radiation-free nature and deep-penetration ability, tumor theranostics mediated by ultrasound have become increasingly recognized as a modality with high potential for translation into clinical cancer treatment. The effective integration of ultrasound imaging and sonodynamic therapy (SDT) into one nanoplatform remains an enormous challenge yet to be fully resolved. Here, a novel theranostic system, consisting of rattle-type SiO2 (r-SiO2) loaded with Mn-doped In2S3/InOOH (SMISO), was designed and synthesized to enable an improved ultrasound imaging-guided therapy. With Mn-doped In2S3/InOOH (MISO) and a heterojunction structure, this novel sonosensitizer facilitates the generation of reactive oxygen species (ROS) for SDT. By coupling interfaces between the shell and core in rattle-type SiO2, multiple reflections/scattering are generated, while MISO has high acoustic impedance. By integrating r-SiO2 and MISO, the SMISO composite nanoparticles (NPs) increase the acoustic reflection and provide enhanced contrast for ultrasound imaging. Through the effective accumulation in tumors, which was monitored by B-mode ultrasound imaging in vivo, SMISO composite NPs effectively inhibited tumor growth without adverse side effects under ultrasound irradiation treatment. This work therefore provides a new approach to integrate a novel gas-free ultrasound contrast agent and a semiconductor sonosensitizer for cancer theranostics.
研究领域:
生物医学工程
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纳米技术
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癌症研究
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诊疗一体化
✓ 已验证
产品关联
DOI
PubMed
高影响因子
APPLIED SURFACE SCIENCE
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2025
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IF 6.9
Yue Wang,Wenjun Zhang,Yanjun Zhang,Meng Chen
Metal-organic frameworks (MOFs), with tunable morphologies and porous architectures, show great potential in photocatalysis. A variety of MOFs can be synthesized by changing the types of metal ions and organic ligands. However, fewer studies have explored the influence of the metal-to-ligand molar ratio on the catalytic performance of the resulting MOF-related products. In this work, capsule-shaped NH 2 -MIL-68(In)/InOOH composites were synthesized by adjusting molar ratios of In(NO 3 ) 3 to 2-aminoterephthalic acid. Time-dependent characterization revealed sequential crystallization: rod-shaped NH 2 -MIL-68(In) initially formed in the solution, followed by the in-situ growth of InOOH nanowires on its surfaces via excess indium ions, ultimately constructing a Z-scheme heterojunction. The optimized NM/InOOH (8:1) composite exhibited a larger specific surface area and extended light absorption. The Z-scheme configuration significantly promoted charge carrier separation efficiency while maintaining strong redox potentials of the photoinduced holes and electrons, thereby resulting in 5–8-fold improvement in degradation rates for four dyes (AOII, RhB, MB, and Rh6G), highlighting its broad photocatalytic applicability.
研究领域:
材料科学
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纳米技术
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环境科学
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光催化
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无机化学
✓ 已验证
产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
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2017
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IF 3.387
Jingjing Xu,Miaomiao Wu,Jingwen Yang,Zhengmei Wang,Mindong Chen,Fei Teng
In this work, we prepared a new wide band gap semiconductor, p -block metal oxyhydroxide InOOH, which exhibits efficient activity for perfluorooctanoic acid (PFOA) degradation under mild conditions and UV light irradiation. The apparent rate constant for PFOA degradation by InOOH is 27.6 times higher than that for P25 titania. Results show that ionized PFOA (C 7 F 15 COO − ) can be adsorbed much more efficiently on the surface of InOOH than P25. Then, the adsorbed C 7 F 15 COO − can be decomposed directly by photo-generated holes to form C 7 F 15 COO radicals. This process is the key step for the photocalytic degradation of PFOA. Major degradation intermediates, fluoride ions and perfluorinated carboxylic acids (PFCAs) with shorter chain lengths were detected during PFOA degradation. A possible pathway for photocatalytic degradation of PFOA is proposed based on the experimental results. Therefore, this studies indicates a potential new material and method for the efficient treatment of PFCA pollutants under mild conditions.
研究领域:
环境科学
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材料科学
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）