CHEMOSPHERE
·
2022
·
IF 8.943
Baolin Chang,Lingling Tang,Xian Zhang,Ji Li,Zhizhang Shen,Jinze Lyu
Solar energy conversion is a promising strategy to enhance the elimination of volatile organic compounds (VOCs) and minimize power consumption. Herein, non-noble metal WC@WO 3 as cocatalyst was composited with CeO 2 to optimize photochemical and photothermal conversion for the catalytic ozonation of toluene and acetone. The photothermal conversion efficiencies of visible and infrared lights on 20%WC@WO 3 –CeO 2 were 2.2 and 10.4 times higher than those on CeO 2 , respectively, which indicates that the equilibrium temperature of the catalyst remarkably increased under full-spectrum light irradiation. Moreover, WC@WO 3 transferred electrons to CeO 2 in 20%WC@WO 3 –CeO 2 and thus remarkably improved the activity of catalytic sites. The synergy factor of light and O 3 on 20%WC@WO 3 –CeO 2 was 5.8, and the reaction rate of toluene and acetone reached 9274.5 and 35779.0 mg/(m 3 ∙min), respectively. This work provides a low-cost and high-efficient catalyst for the utilization of solar energy for VOC control.
研究领域:
环境科学
·
催化
·
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SOLAR ENERGY MATERIALS AND SOLAR CELLS
·
2026
·
IF 6.6
Shijie Liu,Zifan Lin,Haojun Hu,Dayu Liu,Peiyan Zhang,Haoyang Song,Binbin Liu,Jiang Tang,Ying Zhou
Nickel oxide (NiO x ) is a promising hole-transport layer for inverted perovskite solar cells, yet solution-processed NiO x can suffer from morphological inhomogeneity and interfacial defects that limit device performance. Here, we report a chemically regulated chemical bath deposition (CBD) strategy in which an intermediate oxalic acid (OA) treatment is introduced between precursor growth and thermal conversion. During CBD, ammonia-citrate coordination moderates Ni 2+ hydrolysis and promotes the formation of a continuous Ni(OH) 2 precursor film. Subsequent OA treatment reorganizes the loosely stacked nanosheet-like precursor surface, as supported by comparative spectroscopic and morphological analyses, and thermal annealing converts the modified precursor into a smooth and compact NiO film with a Ni 2+ -dominated, NiO-like surface composition. The resulting NiO/SAM stack supports more uniform perovskite film formation and reduced buried-interface non-radiative loss, as evidenced by steady-state PL, TRPL, DLCP, and device-level TPV measurements. Wide-bandgap inverted perovskite solar cells employing the optimized OA-treated CBD-NiO achieve a champion power conversion efficiency of 20.04% with an open-circuit voltage of 1.313 V. The devices also exhibit improved reproducibility and operational stability, retaining 87.0% of their initial PCE after 509 h of continuous MPPT under the specified laboratory conditions. These results demonstrate that intermediate precursor regulation is an effective approach for improving CBD-derived NiO hole-transport layers and their buried interfaces.
✓ 已验证
产品关联
DOI
高影响因子
Separations
·
2025
·Vol. 12
·期 4
·86
·
IF 2.7
Wenlin Hang,Jiaxing Sun,Ronghang Zhao,Heng Chen,Jinjin Li
The presence of abundant water vapor in industrial organic waste gases greatly reduces the selective adsorption of volatile organic pollutants (VOCs). The polarity of the adsorbent and VOC molecules plays an important role in the adsorption process, especially in the presence of water vapor. In this paper, commercial coconut shell activated carbon (CSC) was modified by a thermal reduction treatment to obtain heat-treated coconut shell activated carbon (HCSC). CSC and HCSC exhibited similar pore structure characteristics but differed significantly in surface oxygen content (10.97% and 7.55%, respectively). Dynamic adsorption breakthrough experiments were conducted to determine the dynamic adsorption capacities of toluene on both adsorbents under varying relative humidity levels. HCSC demonstrated superior toluene/water vapor adsorption selectivity. Further analyses of toluene adsorption kinetics, activation energy, and water vapor adsorption isotherms revealed that the lower surface oxygen functional group content of HCSC resulted in a weaker surface polarity, facilitating the adsorption of weakly polar toluene. This was attributed to stronger toluene–HCSC interactions and weaker water–HCSC interactions. The dynamic adsorption capacities of three VOCs with varying polarities were also tested on HCSC. The observed VOC/water vapor adsorption selectivity had the following order: toluene > n-heptane > 1,2-dichloroethane. Grand Canonical Monte Carlo (GCMC) simulations were employed to quantify the relationship between the adsorption selectivity of eight VOCs with varying polarities and their molecular polarity. The results indicated a decrease in adsorption selectivity with increasing VOC polarity. A mechanistic analysis suggests that more polar VOCs prefer to adsorb polar oxygen-containing functional groups, competing with water molecules for adsorption sites. Under high humidity, hydrogen bonding leads to the formation of water clusters, exacerbating this competition. This research holds significant implications for the efficient selective adsorption of VOCs with varying polarities in humid industrial conditions.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
Insects
·
2024
·Vol. 15
·期 7
·548
·
IF 2.7
Mingtao Li,Jie Liu,Shunan Chen,Jun Yao,Lei Shi,Hang Chen,Xiaoming Chen
Simple SummaryThe butterflyByasa hedistusexhibits strong volatiles but shows no significant differences in color and shape. We analyzed the volatile organic compounds (VOCs) and tested the visual and olfactory behavioral responses ofB. hedistusduring foraging and courtship. The effects of colors and VOCs on the foraging and courtship ofB. hedistusare discussed. This study enhances our understanding of how male and female butterflies of similar coloration use different signals for foraging and courtship.AbstractColor and odor are crucial cues for butterflies during foraging and courtship. While most sexual dimorphic butterflies rely more on vision, our understanding of how butterflies with similar coloration use different signals remains limited. This study investigated the visual and olfactory behavioral responses of the similarly colored butterflyByasa hedistusduring foraging and courtship. While visiting artificial flowers of different colors, we found thatB. hedistusexhibits an innate color preference, with a sequence of preferences for red, purple, and blue. The frequency of flower visits byB. hedistussignificantly increased when honey water was sprayed on the artificial flowers, but it hardly visited apetalous branches with honey water. This proves that locating nectar sources by odor alone is difficult in the absence of floral color guides. During courtship, males are active while females hardly chase; only two models were observed: males chasing males and males chasing females. The courtship process includes four behaviors: slowing approach, straight chasing, hovering, and spinning.B. hedistuscannot distinguish between sexes based on color, as there is no significant difference in color and shape between them. Twenty-three VOCs (>1%) were identified inB. hedistus, with 21 shared by both sexes, while ketones are specific to males. These VOCs are principally represented by cineole, β-pinene, and linalool. When cineole was added to butterfly mimics, many butterflies were attracted to them, but the butterflies did not seem to distinguish between males and females. This suggests that cineole may be the feature VOC for identifying conspecific groups. Adding β-pinene and linalool to mimics induced numerous butterflies to chase, hover, spin around, and attempt to mate with them. This suggests that β-pinene and linalool are crucial cues indicating the presence of females.
研究领域:
昆虫学
·
行为生态学
·
化学生态学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Small Methods
·
2023
·Vol. 7
·期 3
·2201276
·
IF 12.4
Wentao Chen,Yuqiong Huang,Hong Cui,Sihan Li,Yaqing Feng,Bao Zhang
The power conversion efficiency (PCE) of tin–lead perovskite solar cells (PSCs) is normally lower than that of Pb cells, mainly due to greater open circuit voltage ( V OC ) losses. Herein, the additive 2,6-diaminopyridine (TNPD) is designed to anchor on the surface of the perovskite precursor colloid as nucleating agent to modulate the growth of Pb–Sn perovskites. It is observed that the TNPD not only effectively induces crystal growth during the nucleation stage, remaining on the crystal surface and ultimately passivating the resulting perovskite films, but also releases the micro-strain generated during the film growth. Furthermore, TNPD could lower the defect density (Sn 4+ amount) by screening the perovskite against oxygen and by synergistically bonding with undercoordinated Sn/Pb on the surface. Finally, a high V OC of 0.85 V is obtained, corresponding to a voltage deficit of 0.41 V using a perovskite absorber with a bandgap of 1.26 eV, and a high PCE (20.35%) reported so far for Pb–Sn PSCs. Moreover, the stability of the TNPD-incorporated device is significantly improved, and the PCE maintains 50% of the initial value after about 1000 h storage in glovebox without encapsulated, in comparison to that of the control device (about 700 h, maintaining 30% of the initial value).
研究领域:
材料科学
·
光伏技术
·
化学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2023
·
IF 4.2
Xiaoya Zhao,Yuchao Chen,Qichao Ding,Tonghu Xiao,Xing Yang
Membranes made of polyoctylmethylsiloxane (POMS) have emerged as an attractive alternative for volatile organic compound (VOC) separation and recovery. We developed an octyl-modified silicone rubber (OMSR) membrane for VOC/N2 separation by a novel strategy. The OMSR membrane was made via the side-chain cross-linking of the poly(vinylmethylsiloxane) and a tailored octyl-grafted poly(hydromethylsiloxane). The octyl side chains were enriched around the cross-linking points composed of the supramolecular structure with octyl-rich parallel polysiloxane domain, which determined the selective transport of VOCs relative to N2. Compared to membranes without octyl, the OMSR membranes exhibited excellent thermal and mechanical stability and simultaneously high permeability and selectivity in VOC/N2 separation, e.g., with >70,000 Barrer of permeability (5.7 times higher) and >240 (3.5 times higher) of selectivity with toluene/N2. We demonstrated that this unique structure has the potential to overcome the permeability–selectivity trade-off relationship, producing a promising class of membranes for removal of VOCs.
研究领域:
材料科学
·
环境工程
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2019
·
IF 8.355
Yuan Zhuang,Siyi Yuan,Jiemin Liu,Yan Zhang,Hao Du,Chuandong Wu,Peng Zhao,Haiying Chen,Yipu Pei
Volatile organic compound (VOC) emissions are a global environmental concern because of their potential health risks. The removal of refractory VOCs calls for advanced technologies with powerful oxidative ability and high mass transfer efficiency. In this study, a yolk-shell Fe 3 O 4 @C/Fenton system was designed to improve octane removal efficiency. The octane removal efficiency at equilibrium was increased by 24.7% relative to that of the Fe 3 O 4 /Fenton system, and the main intermediate or byproduct levels decreased by 89.4%. The yolk-shell Fe 3 O 4 @C displayed higher catalytic and mass transfer efficiencies for octane degradation than Fe 3 O 4 . A synergistic effect of mass transfer enhancement and catalytic oxidation was observed in the yolk-shell Fe 3 O 4 @C/Fenton system. The mechanism of the synergistic effect of mass transfer and octane degradation, a regional reaction theory for the yolk-shell structure, and octane removal pathways were proposed and supported by the octane removal results and byproducts detection and measurement. This yolk-shell Fe 3 O 4 @C/Fenton system provides an effective and advanced way to treat refractory and hydrophobic VOCs, and its preparation can be extended to other high-efficiency core-shell structure catalyst-carbon materials.
研究领域:
环境科学
·
化学工程
·
材料科学
·
催化
·
污染控制
✓ 已验证
DOI
高影响因子
Solar RRL
·
2020
·Vol. 4
·期 7
·2000107
·
IF 7.527
Qin Zhou,Qiu Xiong,Zilong Zhang,Junjie Hu,Fulin Lin,Lusheng Liang,Tingjun Wu,Xiaobing Wang,Jihuai Wu,Bao Zhang,Peng Gao
The notoriously poor stability of organic–inorganic hybrid perovskite solar cells is a crucial issue restricting the commercial application of such burgeoning technology. Passivation of bulk perovskite absorber by fluorinated aromatic ammonium salt via low-dimensional perovskites has been proved to be an effective way of improving stability and efficiency. Herein, the influence of fluorination position ( ortho- , meso- , and para- ) on the aromatic moiety is studied in terms of their dipole moments and the ability to reduce defect density, extend carrier lifetimes, and assist charge transfer. In addition to the improved power conversion efficiency (PCE) from 19.17% to above 20%, the device treated with 2-( o -fluorophenyl)ethylamine iodide exhibits a remarkable open-circuit voltage ( V OC ) of 1.21 V. While the 2-( p -fluorophenyl)ethylamine iodide-treated device shows only 1% loss of its initial value under ambient atmosphere (with RH of 10–30%) without encapsulation for 1440 h storage. The molecular structure of fluorinated aromatic cations plays multiple roles in passivating the interface of the perovskite device.
✓ 已验证
DOI
高影响因子
Nano-Micro Letters
·
2025
·Vol. 17
·期 1
·1-15
·
IF 36.3
Zhang Xian,Liu Fangzhou,Guan Yan,Zou Yu,Wu Cuncun,Shi Dongchang,Zhang Hongkai,Yu Wenjin,Zou Dechun,Zhang Yangyang,Xiao Lixin,Zheng Shijian
Li 2 CO 3 is used to modify conformal SnO 2 as electron transport layer for hole transport layer-free carbon-based perovskite solar cells (C-PSCs).
CO 3 2− can induce MA release from the perovskite layer, resulting in PbI 2 at the grain boundary of top interface of perovskite film which can passivate the grain boundary and the top surface defects.
The Li 2 CO 3 -modified C-PSC exhibits a high power conversion efficiency (PCE) of 19.1%, with a V oc of 1.142 V. A record-high PCE of 33.2% is obtained under weak light-emitting diode illumination (2000 lx, 3000 K).
研究领域:
材料科学
·
光伏技术
·
能源工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Materials Chemistry A
·
2025
·
IF 9.5
Yunyi Ge,Xiao Zhang,Feng Shen,Shuhao Li,Boxiong Shen
Efficient catalytic decomposition of volatile organic compounds (VOCs) in complex coal combustion flue gas remains a significant challenge. In this study, we synthesized a spinel-type high-entropy oxide (HEO) catalyst, (CeMnFeCoCr)3O4, to control the representative VOC o-xylene in the simulated complex coal-fired flue gas. Compared with the conventional multi-phase metal oxide (MMO) catalyst, (CeMnFeCoCr)3O4 demonstrated approximately 20% higher activity, resistance to toxic components (SO2 and H2O), and efficient multi-pollutant removal through reduced competitive effects. The advantages of (CeMnFeCoCr)3O4 arose from its unique composition and the synergistic effects within its high-entropy structure: the integration of Ce oxides—typically found in fluorite structures—into the spinel-type HEO promotes oxygen vacancy formation and promotes deep oxidation of o-xylene. The homogeneous distribution of elements contributes to its resistance against poisoning components. The high-entropy configuration promotes charge redistribution among Ce, Mn, Fe, Co, and Cr, activating inert elements (Co and Cr) to generate more active sites, enabling stable co-adsorption and efficient catalysis of multiple pollutants. This work proved the effectiveness and stability of (CeMnFeCoCr)3O4 in purifying complex coal-fired flue gas, potentially expanding the application of high-entropy materials in industrial settings.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF INDUSTRIAL MICROBIOLOGY & BIOTECHNOLOGY
·
2017
·Vol. 44
·期 9
·1313-1324
·
IF 2.81
Wu Chao,Xu Peilun,Xia Yinfeng,Li Wei,Li Sujing,Wang Xiangqian
Engineered microbial ecosystems in bioscrubbers for the treatment of volatile organic compounds (VOCs) have been complicated by complex VOC mixtures from various industrial emissions. Microbial associations with VOC removal performance of the bioscrubbers are still not definitive. Here, one- and two-phase partitioning airlift bioreactors were used for the treatment of a complex VOC mixture. Microbial characteristics in both bioreactors were uncovered by high-throughput metagenomics sequencing. Results showed that dominant species with specialized VOC biodegradability were mainly responsible for high removal efficiency of relative individual VOC. Competitive enzyme inhibitions among the VOC mixture were closely related to the deterioration of removal performance for individual VOC. Relative to the mass transfer resistance, the specialized biodegrading functions of microbial inoculations and enzymatic interactions among individual VOC biodegradation also must be carefully evaluated to optimize the treatment of complex VOC mixtures in bioreactors.
研究领域:
环境工程
·
微生物学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
MICROCHEMICAL JOURNAL
·
2023
·
IF 4.8
Ben Niu,Zhenyu Zhai,Shuyan Yu,Tong Li,Jiaona Wang,Yan Zhou,Congju Li
A copper-based metal–organic framework (MOF-199) demonstrates excellent performance and considerable potential in the gas detection of volatile organic compounds (VOCs). However, the powder of MOF-199 seriously limits its application in the fabrication of flexible devices. Herein, we introduce a simple method of blending electrospinning, combining MOF-199 with polyacrylonitrile (PAN) nanofiber to form a MOF-199/PAN nanofiber membrane with the flexibility of PAN nanofiber and the functionality of MOF-199. The capacitive sensor comprising MOF-199/PAN nanofiber membrane and carbon nanotubes exhibits good flexibility, high porosity, and sufficient adsorption active sites. The sensor has the highest response to methanol among seven target VOCs. It exhibits outstanding sensitivity, long-term stability, good linear response, and repeatability toward methanol (250–1250 ppm). Owing to the flexibility of the MOF-199/PAN nanofiber membrane, the sensor maintains a stable sensing response after repeated bending at 180˚–0˚ 50 times and exhibits a certain degree of response in the 180˚ bending state. The results show that the sensor has flexibility potential. These provides some ideas and reference for the development of VOCs sensors.
研究领域:
材料科学
·
化学传感
·
环境监测
✓ 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）