A PPy/ZnIn2S4 (PPy/ZIS) composite photocatalyst has been successfully synthesized using a straightforward in situ growth method and applied to the photocatalytic degradation of phenol. The flaky ZIS material is evenly enveloped around the surface of tubular PPy, forming PPy/ZIS composites. Compared to ZIS and PPy alone, the PPy/ZIS composite exhibits superior electron–hole pair separation performance. Consequently, the PPy/ZIS composite displays a 7.8-fold increase in photocatalytic efficiency compared to pure ZIS nanomaterials, achieving 95% phenol removal within 4 h. The primary active species responsible for phenol degradation are identified as hydroxyl radicals (·OH) and superoxide radicals (·O2–). Additionally, an exploration is conducted into the photocatalytic breakdown mechanism of phenol under full spectrum irradiation, specifically for the PPy/ZIS composite. Remarkably, the PPy/ZIS composite demonstrates excellent photostability during cycling tests, underscoring its potential as an effective photocatalytic material for phenol degradation.

Polypyrrole

Degradation

10.1021/acs.iecr.4c00232

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An efficient and universal solar interfacial photothermal reactor toward liquid phase oxidation

AIChE Journal (2022)

Chen Wu Wenbin Wang Kai Zhu Wenrui Li Dong Cai

Abstract Photothermal catalysis has attracted great attention owing to high solar energy utilization efficiency, and great progress has been achieved in gas‐phase catalysis. However, photothermal catalysis in liquid‐phase shows a limited performance, due to high specific heat capacity of liquid. Herein, an interfacial photothermal catalytic (IPC) strategy applying an IPC leaf was designed for liquid‐phase catalysis using benzyl alcohol oxidation as the model reaction. On even ground, the benzaldehyde generation rate (8.7 mmol g cat −1 h −1 ) of the IPC system with Ce‐doped MnO 2 as photothermal catalyst was almost 4.8 times and 3 times of bulk photothermal catalysis and the relative bulk thermal catalysis. Experimental results proved that this excellent catalytic performance could be attributed to both the high temperature achieved and the enhanced lattice oxygen activity by solar irradiation. This IPC system also exhibited good universality and long‐term durability. Our work innovatively created a green strategy to obtain fine chemicals with only solar irradiation.

Photothermal effect

Benzyl alcohol

Liquid phase

Benzaldehyde

10.1002/aic.17995

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Author response for "Deciphering dynamic solid-liquid interphase for energetic high-mass-loading energy storage"

Jinxin Wang Wei Guo Mingming Sun Geng Zhang Yang Meng

Interphase

10.1039/d4ee03303e/v2/response1

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Using a Self-Assembled Two-Dimensional MXene-Based Catalyst (2D-Ni@Ti₃C₂) to Enhance Hydrogen Storage Properties of MgH₂

ACS Applied Materials & Interfaces (2020)

Wen Zhu Subrata Panda Chong Lu Zhewen Ma Darvaish Khan

In this work, we report the remarkable catalytic effects of a novel Ti3C2 MXene-based catalyst (Ni@Ti-MX), which was prepared via self-assembling of Ni nanoparticles onto the surface of exfoliated Ti3C2 nanosheets. The resultant Ni@Ti-MX catalyst, characterized by ultradispersed Ni nanoparticles being anchored on the monolayer Ti3C2 flakes, was introduced into MgH2 through ball milling. In situ transmission electron microscopy (TEM) analysis revealed that a synergetic catalytic effect of multiphase components (Mg2Ni, TiO2, metallic Ti, etc.) derived in the MgH2 + Ni@Ti-MX composite exhibits remarkable improvements in the hydrogen sorption kinetics of MgH2. In particular, the MgH2 + Ni@Ti-MX composite can absorb 5.4 wt % H2 in 25 s at 125 °C and release 5.2 wt % H2 in 15 min at 250 °C. Interestingly, it can uptake 4 wt % H2 in 5 h even at room temperature. Furthermore, the dehydrogenation peak temperature of the MgH2 + Ni@Ti-MX composite is about 221 °C, which is 50 and 122 °C lower than that of MgH2 + Ti-MX and MgH2, respectively. The excellent hydrogen sorption properties of the MgH2 + Ni@Ti-MX composite are primarily attributed to the peculiar core-shell nanostructured MgH2@Mg2NiH4 hybrid materials and the interfacial coupling effects from different catalyst-matrix interfaces. The results obtained in this study demonstrate that using self-assembling of transition-metal elements on two-dimensional (2D) materials as a catalyst is a promising approach to enhance the hydrogen storage properties of MgH2.

MXenes

Magnesium hydride

10.1021/acsami.0c12767

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Modified Tubular Carbon Nanofibers for Adsorption of Uranium(VI) from Water

ACS Applied Nano Materials (2020)

Mudasir Ahmad Ke Yang Lingxuan Li Yihao Fan Tariq Shah

Carbon nanomaterials with a hollow tubular nanofiber structure is of great interest for uranium(VI) adsorption from water. Their unique structure not only exposes a good number of functional groups and high surface area but also shows quick ion transport capacity. However, finding a simple method to prepare a new carbon structure is challenging. Herein, a new tubular hyper-cross-linked polymer is fabricated in a single pot using α,α′-dichloro-p-xylene (DCX) as a monomer. After carbonization, hollow tubular nanofibers (HTnFs) are obtained. Further, HTnFs are modified with carboxylic (COOH) and sulfonic(SO3H) groups to obtain HTnF-SO3H and HTnF-COOH designed for ultrafast and high uranium(VI) adsorption from water. From the batch studies, uranium(VI) adsorption efficiencies of two adsorbents are greater than 90 ± 0.5% under seawater conditions over a short period of 10 min. The accurate data fitting was performed by using different models and the adsorption results are in agreement with the Langmuir model. The adsorption results showing the maximum adsorption capacities of HTnF-COOH and HTnF-SO3H are 1928.59 and 1827.57 mg/g. The easy preparation, highest uranium(VI) adsorption, and regeneration properties suggest that these adsorbents act as good uranium(VI) adsorbents from large-scale water.

Langmuir adsorption model

Uranyl

10.1021/acsanm.0c00837

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Confining polymerization at emulsion interface by surface-initiated atom transfer radical polymerization on reactive Pickering stabilizer

Journal of Industrial and Engineering Chemistry (2015)

Dezhong Yin Wangchang Geng Qiuyu Zhang Baoliang Zhang

Pickering emulsion

Atom-transfer radical-polymerization

Stabilizer (aeronautics)

Emulsion polymerization

Chain transfer

10.1016/j.jiec.2015.07.010

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Regulation of renal phosphate transport by FGF23 is mediated by FGFR1 and FGFR4

AJP Renal Physiology (2013)

Jyothsna Gattineni Priyatharshini Alphonse Qiuyu Zhang Nisha Mathews Carlton M. Bates

Fibroblast growth factor 23 (FGF23) is a bone-derived hormone that acts on the proximal tubule to decrease phosphate reabsorption and serum levels of 1,25-dihydroxyvitamin D₃ [1,25(OH)₂ Vitamin D₃]. Abnormal FGF23 metabolism has been implicated in several debilitating hypophosphatemic and hyperphosphatemic disorders. The renal receptors responsible for the phosphaturic actions of FGF23 have not been elucidated. There are four fibroblast growth factor receptors (FGFR); 1-4 with "b" and "c" isoforms for receptors 1, 2, and 3. FGFR1, 3, and 4 are expressed in the mouse proximal tubule, and deletion of any one receptor did not affect serum phosphate levels, suggesting that more than one receptor is involved in mediating the phosphaturic actions of FGF23. To determine the receptors responsible for the phosphaturic actions of FGF23, we studied Fgfr1 (kidney conditional) and Fgfr4 (global) double mutant mice (Fgfr1⁻/⁻/Fgfr4⁻/⁻). Fgfr1⁻/⁻/Fgfr4⁻/⁻ mice have higher FGF23 levels than their wild-type counterparts (108.1 ± 7.3 vs. 4,953.6 ± 675.0 pg/ml; P < 0.001). Despite the elevated FGF23 levels, Fgfr1⁻/⁻/Fgfr4⁻/⁻ mice have elevated serum phosphorus levels, increased brush-border membrane vesicle (BBMV) phosphate transport, and increased Na-P(i) cotransporter 2c (NaPi-2c) protein expression compared with wild-type mice. These data are consistent with FGFR1 and FGFR4 being the critical receptors for the phosphaturic actions of FGF23.

Hypophosphatemia

10.1152/ajprenal.00232.2013

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Citations (115)