Article
Chemistry, Analytical
Yumeng Liu, Qingfei Liang, Pingyang Zheng, Gang Li, Jia Liu, Jinniu Zhang, Jianzhi Gao, Hongbing Lu
Summary: Porous raspberry-like CuO hollow nanospheres were prepared by calcining Cu3N nanosphere precursors through a solid-gas displacement reaction involving the Kirkendall effect. The raspberry-like CuO hollow nanospheres had a spherelike microstructure with a rough surface, showing hydrophobic properties. The CuO hollow nanospheres exhibited high response and improved kinetics, as well as good selectivity and repeatability for NO2 sensing, attributed to their increased specific surface area, porosity, and hydrophobic surface.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Nanoscience & Nanotechnology
Dong Liu, Zizhu Wang, Yirui Ma, Caiyun Xu, Shenghu Zhou
Summary: In this study, Au-CuxOy hybrid nanoparticle-encapsulated hollow porous silica nanospheres (Au-CuxOy in HPSNs) were synthesized by immobilizing the catalytic functionality inside hollow cavities using polyethyleneimine in a reverse microemulsion system. Compared to individual Au and CuxOy, the prepared Au-CuxOy in HPSNs showed significantly improved catalytic efficiency for the reduction of various nitrophenols with NaBH4. The enhanced performance can be attributed to the synergistic effect between Au and CuxOy, as well as the protection provided by the silica shells for the inner Au-CuxOy.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Justine Ben Ghozi-Bouvrande, Stephane Pellet-Rostaing, Sandrine Dourdain
Summary: This study investigates the synthesis of silica-based type I porous liquids by modifying the main synthesis parameters to tune the size of the nanospheres and internal cavities, as well as the silica shell microporosity to control the accessibility of the internal cavities. The key parameters of hollow silica nanospheres for optimized structural and porous properties in the synthesis of type I porous liquids are highlighted in this research.
Article
Chemistry, Multidisciplinary
Huaqing Wang, Zhiwei He, Haitao Yu, Shengguang Gao, Li Zhang, Kun Huang
Summary: The newly synthesized nanospheres HPNs-NH2 showed high adsorption capacity and stability for hexavalent chromium in wastewater treatment, indicating their potential importance in environmental protection.
Article
Materials Science, Ceramics
Bingkun Xu, Qinchuan He, Yiqun Wang, Xuemin Yin
Summary: Hollow porous Ni@SiC nanospheres were successfully constructed by combining a carbothermal reduction preparation strategy and subsequent electroless plating process. The heterogeneous dielectric/magnetic multi-component structure of the nanospheres contributes to their excellent electromagnetic wave absorption properties.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Ceramics
Young Sunwoo, Gopalu Karunakaran, Eun-Bum Cho
Summary: Hollow mesoporous silica nanospheres were synthesized using pentablock copolymer templates under acidic aqueous conditions, with tetraethyl orthosilicate as the silica precursor. The structure could be tuned by using different length pentablock copolymer templates, resulting in variations in pore structure and morphology. The samples demonstrated hydrothermal stability and the formation of hollow mesopore structures under room temperature conditions.
CERAMICS INTERNATIONAL
(2021)
Review
Environmental Sciences
Qi Liu, Hao Li, Yuming Zhang, Wenmiao Chen, Sirong Yu, Yanli Chen
Summary: This review systematically summarizes the application of porphyrin/phthalocyanine-based porous organic polymers (Por/Pc-POPs) for pollutant removal and detection over the past decade, providing valuable guidance for environmental remediation.
ENVIRONMENTAL RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Ming Kong, Yingyi Wu, Dandan Men, Qianqian Ding, Honghua Zhang
Summary: In this study, porous Au-Ag alloy nanoparticle arrays with hydrophobic surfaces were prepared using the polystyrene colloidal crystal template combined with the chemical etching method. The arrays enable rapid and trace SERS detection for biochemical molecules and provide a material basis for the construction of high-quality SERS substrates.
Article
Chemistry, Physical
Junlei Wang, Xueqin Wang, Qihui Chen, Helong Xu, Man Dai, Mei Zhang, Wenyi Wang, Hua Song
Summary: The microstructure of photocatalysts, such as hollow TiO2 spheres synthesized using RF polymer resin, plays a vital role in enhancing photocatalytic performance. Adjusting the concentration of ammonia during synthesis affects the micromorphology and photocatalytic properties of the TiO2 spheres. The high conductivity and surface area of the hollow TiO2 spheres contribute to their efficient photocatalytic performance in phenol decomposition.
APPLIED SURFACE SCIENCE
(2021)
Article
Engineering, Environmental
Fuhua Zhao, Xiaodong Li, Jianjiang He, Kun Wang, Changshui Huang
Summary: Carbon-based hollow nanostructures, such as graphdiyne hollow nano spheres (GDY-HNSs) prepared through solvothermal synthesis, offer promising potential for energy-related fields due to their hierarchical structures, large specific surface areas, and appropriate hollow interiors. When used as anodes in lithium-ion batteries, GDY-HNSs exhibit enhanced electrochemical properties, including higher reversible specific capacity, improved rate capacity, and cycling performance.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Environmental
Jinjin Li, Tangying Cheng, Hao Wu, Linjun Yang
Summary: In this study, a hydrophobic and hollow hierarchical porous activated carbon was synthesized, which exhibited excellent adsorption performance and reusability for volatile organic compounds in complex waste gases.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Ru Hu, Rui Xu, Zizhu Wang, Junyou Wang, Shenghu Zhou
Summary: In this study, Au nanoparticles were synthesized and encapsulated in hollow porous silica nanospheres (Au@HPSNs). The Au@HPSNs consisted of extremely small Au nanoclusters (-1.3 nm) enclosed in high specific surface area (-800 m2/g) HPSNs. The formation of PEI-PAA@SiO2 core-shell structures was achieved by using electrostatic attraction between poly(acrylic acid) (PAA) anions and protonated poly(ethylenimine) (PEI) in an ethanol-water system. The Au@HPSNs were obtained by soaking PEI-PAA@SiO2 in HAuCl4 solution and subsequent calcination. The Au@HPSNs exhibited highly efficient catalytic activity for 4-nitrophenol (4-NP) reduction with NaBH4, surpassing the current record for heterogeneous Au-based catalysts in 4-NP reduction. The enhanced performance of Au@HPSNs can be attributed to the ultra-fine Au nanoclusters and the small mass transfer hindrance with high specific surface area hollow porous silica.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Materials Science, Multidisciplinary
Zehan Chen, He Jia, Stephanie Hoeppener, Christian Friebe, Jiande Wang, Geraldine Chanteux, Dongjiu Xie, Yan Lu, Alexandru Vlad, Ulrich S. Schubert, Jean-Francois Gohy
Summary: We develop hollow porous silicon nanospheres with a three-dimensional carbon coating and SiC transition interlayer (C@SiC@Si@SiC@C) to address the challenges faced by Si anodes. The synthesized C@SiC@Si@SiC@C anode shows high utilization of the active substance, high measured capacity (3200 mAh g-1), and stable cycling performance (0.7% per cycle decay rate at 0.2C). The superior performances are attributed to the unique structure design and the functional features of carbon coating and SiC transition interlayer.
MATERIALS & DESIGN
(2023)
Article
Nanoscience & Nanotechnology
Yirui Ma, Kaijie Li, Caiyun Xu, Zhao Kuai, Zizhu Wang, Shenghu Zhou
Summary: Pd-CoxOy heteroaggregate-encapsulated hollow porous silica nanoreactors (Pd-CoxOy@HPSNs) were synthesized using a reverse microemulsion system, showing significantly enhanced catalytic efficiency for hydrodechlorination of chlorophenols under mild reaction conditions.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Nanoscience & Nanotechnology
Yirui Ma, Kaijie Li, Caiyun Xu, Zhao Kuai, Zizhu Wang, Shenghu Zhou
Summary: Pd-CoxOy heteroaggregate-encapsulated hollow porous silica nanoreactors (Pd-CoxOy@HPSNs) were synthesized using a reverse microemulsion system. The synthesized Pd-CoxOy@HPSNs showed enhanced efficiency in the hydrodechlorination of chlorophenols due to the synergistic effect between Pd and CoxOy and the protection provided by the silica shells.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Fanhao Kong, Min Wang
Summary: The research focused on a flowerlike hybrid composed of sulfur-modulated metallic nickel nanoparticles coupled with carbon frameworks for the electrochemical oxidation of biomass-derived 5-hydroxymethylfurfural. The optimized electrode showed high selectivity and efficiency, achieving a high yield of 2,5-furandicarboxylic acid.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Zhaolin Dou, Zhe Zhang, Hongru Zhou, Min Wang
Summary: The study demonstrated a new method for producing diesel from lignin, utilizing photocatalysis and hydrodeoxygenation to convert biomass into renewable fuel.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Physical
Zhaolin Dou, Zhe Zhang, Min Wang
Summary: A Pd-PdO/TiO2 catalyst was prepared for the self-hydrogen transfer hydrogenolysis (STH) of lignin, showing higher activity and yield compared with other catalysts. In the STH process, Pd and PdO play different roles, with Pd acting as the dehydrogenation site and PdO activating the C-beta-O bond.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Physical
Yuqing Shao, Zhaolin Dou, Xiaoyu Liang, Xinxin Zhang, Min Ji, Min Pang, Min Wang, Xinkui Wang
Summary: This study demonstrates the effectiveness of ZnIn2S4-loaded NH-SiO2 for visible-light driven CO2 photocatalytic reduction, with significantly improved CO production rates attributed to enhanced charge separation efficiency and active sites provided by amine groups.
CATALYSIS SCIENCE & TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Hongru Zhou, Min Wang, Feng Wang
Summary: This study presents a new oxidative photo-reforming strategy using a CdS@g-C3N4 composite to convert biomass-derived polyols into CO at room temperature. The strategy achieves high yield in an oxygen-rich atmosphere and provides a sustainable pathway for carbon-neutral production of CO.
Article
Chemistry, Physical
Zhiwei Chen, Hongru Zhou, Fanhao Kong, Min Wang
Summary: In this study, a novel method of selective oxidation of 5-hydroxymethylfurfural (HMF) using a piezocatalyst was proposed. The Pt decorated hydroxyapatite (HAP) showed outstanding piezocatalytic activity, achieving high conversion and yield of value-added chemicals from biomass. This work provides a new approach for biomass conversion using piezocatalysis.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Energy & Fuels
Wei Wang, Zhe Zhang, Min Wang
Summary: In this study, a highly efficient NiO-N/C composite catalyst was prepared and showed high activity and stability in the electrochemical oxidation of HMF to FDCA in biomass.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Chemistry, Multidisciplinary
Fanhao Kong, Hongru Zhou, Zhiwei Chen, Zhaolin Dou, Min Wang
Summary: In this study, a method for producing CO and H-2 from biomass via a divided photoelectrochemical cell at room temperature is proposed. Nitrogen doped tungsten trioxide is used as the photoanode to reform biopolyols to CO and H+, while platinum cathode reduces H+ to H-2. The method shows high rates and purity, and can be applied to a wide range of biopolyols.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Hongru Zhou, Min Wang, Fanhao Kong, Zhiwei Chen, Zhaolin Dou, Feng Wang
Summary: This study unveils the electron transfer process from the conduction band of the semiconductor to surface-bound species in photocatalytic reactions. It demonstrates that the surface structure of the catalyst significantly affects the electron transfer energy and trap states, which in turn regulates the photocatalytic activity and selectivity.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Review
Chemistry, Multidisciplinary
Min Wang, Feng Wang, Hongru Zhou
Summary: Biomass exploration is an important topic in renewable energy research. Photocatalytic valorization of biomass into fuels and chemicals is a promising and sustainable method. This article provides a comprehensive review of the research direction of photocatalytic reforming of biomass into syngas (CO + H2) and discusses various strategies and challenges in this field.
ACCOUNTS OF CHEMICAL RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Zhe Zhang, Fuao Jia, Fanhao Kong, Min Wang
Summary: This study reports the pivotal effect of chloride adsorbates on the separation of photocarriers and the enhancement of photocatalytic syngas evolution. Chloride adsorbed on the surface of CdS increases the internal electric field and promotes charge separation and migration. The delocalization of surface holes on specific sites in CdS-Cl can reduce hole mobility and prolong the lifetime of photocarriers, resulting in an 11-fold increase in the photocatalytic syngas evolution from glycerol.
Article
Chemistry, Physical
Xiaoyu Liang, Xinkui Wang, Xinxin Zhang, Sisi Lin, Min Ji, Min Wang
Summary: In this study, a ZnIn2S4/In(OH)3-x (ZIOS) heterojunction was developed for visible-light-driven CO2 reduction. The ZIOS composites, fabricated via partial sulfurization of Zn-In-O oxide, exhibit a CO formation rate of 1945.5 mu mol center dot g-1 center dot h-1, which is about 2.76-fold higher than that over ZnIn2S4, and suppress hydrogen evolution, with the CO/H2 ratio increasing from 0.436 for ZnIn2S4 to 1.6 for ZIOS. This work provides insight into the design of efficient CO2 reduction photocatalysts.
Article
Chemistry, Multidisciplinary
Wenjing Zou, Hongru Zhou, Min Wang
Summary: In this study, a biomimetic room-temperature C-O bond cleavage process was reported by constructing a Mn doped CdS photocatalyst. The Mn site played a pivotal role in accelerating the carrier separation and serving as the binding site for -OH groups. This study provides a promising method for the biomass valorization.
Article
Chemistry, Multidisciplinary
Fuao Jia, Hongru Zhou, Min Wang
Summary: Photocatalytic oxidation of bio-polyols is a promising approach for biomass valorization, but achieving selective conversion is challenging. In this study, we demonstrate a selective photocatalytic process to convert bio-polyols into formic acid (FA) or carbon monoxide (CO) by controlling the phase of TiO2. Through the phase control, high selectivity of FA or CO can be achieved from a wide range of bio-polyols. The phase-dependent selectivity is attributed to the difference in the adsorption configuration of FA. This work provides new insights for the design of photocatalytic systems for biomass conversion.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Zhe Zhang, Min Wang, Feng Wang
Summary: This study reports a new method for the preparation of CdO quantum dots/CdS intimate heterojunction through surface oxidative reconstruction of CdS. The semi-coherent interface and quantum size of CdO quantum dots efficiently promote charge separation and migration to the surface, enhancing the photocatalytic CO generation rate.
