Nanjing Tech University

About: Nanjing Tech University is a education organization based out in Nanjing, China. It is known for research contribution in the topics: Catalysis & Membrane. The organization has 21827 authors who have published 21794 publications receiving 364050 citations. The organization is also known as: Nangongda & Nánjīng Gōngyè Dàxúe.

Multicolor Ultralong Organic Phosphorescence through Alkyl Engineering for 4D Coding Applications

Abstract: Luminogens with colorful ultralong organic phosphorescence (UOP) are in high demand because of various potential applications in optoelectronics. Herein, we report a concise approach to tune UOP ba...

Crystalline nanotubes of γ-AlOOH and γ-Al2O3: hydrothermal synthesis, formation mechanism and catalytic performance

Abstract: Crystalline nanotubes of γ-AlOOH and γ-Al2O3 have been synthesized An anionic surfactant-assisted hydrothermal process yields γ-AlOOH nanotubes, and appropriate calcination treatment of the γ-AlOOH nanotubes yields γ-Al2O3 nanotubes The nanotubes were characterized by XRD, SEM, TEM, TG-DSC, FTIR and nitrogen adsorption–desorption techniques Both the γ-AlOOH and γ-Al2O3 nanotubes are crystalline, with a representative length of ~500 nm and diameters of 20–40 nm The γ-Al2O3 nanotubes exhibit a very high mesoporous specific surface area (SSA) of 2010 m2 g−1 and a high mesopore volume of 068 cm3 g−1 with an average mesopore size of 277 nm, as well as a high microporous SSA of 1860 m2 g−1 and a micropore volume of 008 cm3 g−1 with an average micropore size of 053 nm The formation process was discussed and a possible mechanism was proposed, in which a lamellar phase was first formed by camphorsulfonic anions and Al(III) species, and then rolled up to form the crystalline nanotubes under the hydrothermal condition The catalytic performance of the obtained γ- Al2O3 nanotubes was tested by using the dehydration of ethanol to ethylene as a probe reaction and it was shown that the obtained γ- Al2O3 nanotubes catalyst possesses a higher catalytic activity compared with the γ- Al2O3 nanoparticles

Highly permeable and antifouling reverse osmosis membranes with acidified graphitic carbon nitride nanosheets as nanofillers

Abstract: Ultrathin graphitic carbon nitride (gCN) nanosheets, due to their two-dimensional graphene-like structure, regularly distributed triangular nanopores and structural defects on the laminar network, have attracted great research attention in fabricating high-performance water selective membranes. However, the poor dispersity of gCN limited its application in thin film nanocomposite (TFN) membranes. Here, we synthesized acidified graphitic carbon nitride (aCN) with smaller size and higher solubility. Both aCN and gCN were incorporated into a polyamide (PA) selective layer by interfacial polymerization. The aCN embedded TFN membrane (TFN-aCN) possessed supreme reverse osmosis (RO) performance among the prepared membranes. Compared with the reference TFC membrane, the TFN-aCN50 membrane exhibited a 79.3% increase in permeate flux accompanied by a quite high NaCl rejection of 98.6%. Moreover, the introduction of aCN and gCN generated a more hydrophilic and negatively charged membrane surface, and thus resulted in an improved antifouling performance.