Fabrication and enhanced visible-light photocatalytic Hproduction of B-doped N-deficient g-CN/CdS Hybrids with robust 2D/2D hetero-interface interaction.

2D layered photocatalysts with proper electronic structure have sparked much attention in the field of visible-light photocatalysis for Hproduction. Herein, by simply calcining the mixture of ultrathin g-CN(CNN) and NaBH, heteroatom B and N defect were simultaneously introduced into g-CN. The obtained modified g-CN(BDCNN) was further coupled with 2D flower-like CdS nanosheet.

Improved Esterification of Citric Acid and n-Butanol Using a Dense and Acid-Resistant Beta Zeolite Membrane.

In this work, a dense and acid-resistant beta zeolite membrane was applied to improve the esterification of citric acid and n-butanol, for the first time. Through the continuous removal of the by-product water via pervaporation (PV), the conversion of citric acid was significantly enhanced from 71.7% to 99.

self-assembly fabrication of ultrathin sheet-like CuS modified g-CNheterojunction and its enhanced visible-light photocatalytic performance.

Photocatalysts with heterojunction structure have been widely used for organic degradation. In this study, CuS/g-CNheterojunction was formed byself-assembly via a simply hydrothermal method. A series of characterizations were applied to analyzing the morphology, structure, optical properties and photo-induced electron transfer of the samples.

Preparation of Pebax 1657/MAF-7 Mixed Matrix Membranes with Enhanced CO/N Separation by Active Site of Triazole Ligand.

Fillers play a critical role in the performance of mixed matrix membranes (MMMs). Microporous metal azolate frameworks (MAFs) are a subclass material of metal-organic frameworks (MOFs). Due to the uncoordinated nitrogen of the organic ligands, MAF-7 (SOD-[Zn(mtz)], Hmtz = 3-methyl-1,2,4-triazole, window: d = 0.

Enhanced Hevolution performance by carbonized SiC/g-CNheterojunction under visible-light illumination.

In this study, carbonized silicon carbide/graphitic carbon nitride ((SiC/C)/g-CN) composites were fabricated via a facile calcination method. The optimal SiC/C/g-CNcomposite shows an excellent visible-light photocatalytic activity for water splitting, with the highest hydrogen evolution amount being 200.2mol, which is four times higher than that of pure g-CNwhen triethanolamine and platinum (1.

Membrane Reactor for Methanol Synthesis Using Si-Rich LTA Zeolite Membrane.

We successfully demonstrated the effect of a membrane reactor for methanol synthesis to improve one-pass CO conversion. An Si-rich LTA membrane for dehydration from a methanol synthesis reaction field was synthesized by the seed-assisted hydrothermal synthesis method. The HO permselective performance of the membrane showed 1.

Single Gas Permeance Performance of High Silica SSZ-13 Zeolite Membranes.

Continuous and high silica SSZ-13 zeolite membranes were prepared on porous mullite supports from high SiO₂/Al₂O₃ ratio or aluminum-free precursor synthesis gel. Single gas permeance (CO₂ and CH₄) of the high silica SSZ-13 zeolite membrane was decreased with the SiO₂/Al₂O₃ ratio in the precursor synthesis gel, while the ideal CO₂/CH₄ selectivity of the membrane was gradually increased. Moreover, effects of synthesis conditions (such as H₂O/SiO₂ and RNOH/SiO₂ ratios of precursor synthesis gel, crystallization time) on the single gas permeance performance of high silica SSZ-13 zeolite membranes were studied in detail.

Two-step adsorption on jungle-gym-type porous coordination polymers: dependence on hydrogen-bonding capability of adsorbates, ligand-substituent effect, and temperature.

A preliminary study of isopropanol (IPA) adsorption/desorption isotherms on a jungle-gym-type porous coordination polymer, [Zn(2)(bdc)(2)(dabco)](n) (1, H(2)bdc = 1,4-benzenedicarboxylic acid, dabco =1,4-diazabicyclo[2.2.2]octane), showed unambiguous two-step profiles via a highly shrunk intermediate framework.

Hydrogen-bonded porous coordination polymers: structural transformation, sorption properties, and particle size from kinetic studies.

Three new coordination polymers, [CoCl2(4-pmna)2]n (1), {[Co(NCS)2(4-pmna)2].2Me2CO}n (2 superset 2Me2CO), and {[Co(4-pmna)2(H2O)2](NO3)2.2CH3OH}n (3 superset 2H2O.

Preparation and gas separation properties of zeolite T membrane.

Zeolite T membranes were synthesized on tubular porous mullite tubes by hydrothermal synthesis. The membranes selectively permeated carbon dioxide from CO2/CH4 and CO2/N2 mixtures with high separation performances, which were due to combined effects of molecular sieving and competitive adsorption.