Kuo Zhan

Beijing Jiaotong University | NJTU · school of science

Many odors, like perfumes, are complex mixtures of chiral and achiral molecules where the cost‐efficient (enantio−)selective sensing represents a major technical challenge. Here, we present a colorimetric sensor array of surface‐mounted metal‐organic‐framework (SURMOF) films in Fabry‐Pérot (FP) cavities. The optical properties of the FP‐SURMOF film...

Detecting Volatile Organic Compounds In article 2300329, Heinke and co-workers presented an optical sensor array of Fabry-Pérot films based on three different nanoporous metal-organic frameworks (MOFs). The photonic properties, and thus the reflected light from each Fabry-Pérot-MOF sensor, are used as sensor signals to identify various volatile org...

The unambiguous detection and classification of volatile organic compounds (VOCs) are crucial in many fields. For using VOC‐sensing to explore the alteration and spoilage of food, very inexpensive sensors are desired. Simple colorimetric sensors seem highly attractive for these applications. Here, a label‐free, colorimetric sensor array made of met...

An optical sensor array based on photonic Fabry-Pérot films of surface-mounted metal-organic-frameworks (SURMOFs) with different homochiral structures is presented. It is used to detected and enantioselectively discriminated 3 pairs of...

Superior sensitive, selective, and repeatable real-time detection of low concentrations of benzene vapor is vitally important for environmental protection and human health. A benzene vapor sensor using three-dimensional photonic crystals (3-D PCs) based on zeolitic imidazolate framework-8@graphene quantum dots (ZIF-8@GQDs) was proposed. The 3-D PCs...

The extensive use of hypochlorite (ClO⁻) as oxidant and bleach has drawn serious concern due to their adverse environment and biological impact. Herein, a novel fluorescence probe based MAPbBr3@ZIF-8 composites by embedding MAPbBr3 NPs in ZIF-8 were prepared for ClO⁻ detection in water samples. MAPbBr3@ZIF-8 composites exhibited remarkable stabilit...

Label free detection with high sensitivity, selectivity and reliability is crucial for monitoring carbon tetrachloride (CCl4) vapor, which is a kind of hazardous vapor to human health even at low concentration. In this work, we synthesized the MIL-101(Cr) through a hydrofluoric acid-free (HF-free) method and proposed a label-free high performance o...

Highly sensitive, selective, and repetitive real-time detection of the low concentration (< 5ppm) HCl gas is crucially important in environmental protection and industrial safety. In this paper, we proposed a nano-porous UIO-66-NH <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> /TiO <sub xmlns:...

In this study, we proposed the one-dimensional (1D) photonic crystals (PCs) chlorobenzene sensor assembled by TiO2, UiO-66 and graphene oxide (GO). The originality of the sensor is that the PCs structure alternately assembled by TiO2, UiO-66 and GO. The unique structure of the sensor can enhance the selectivity and sensibility of the sensor to chlo...

MAPbBr3 has a great prospect in various fields, due to excellent fluorescence quantum efficiency, band gap tunable and short of fluorescence lifetime. However, the instability of MAPbBr3 seriously impedes its application. Herein, the MAPbBr3 embedded in Zinc-Cobalt binary zeolitic imidazolate framework (ZIF-8Cox%, x=0-20) has been developed to fabr...

This paper is devoted to an investigation of the carbon tetrachloride (CCl4) sensing properties of the microporous zeolitic-imidazolate framework-8 (ZIF-8) composite with one-dimensional top-defect photonic crystals(1DTDPC) structure. We propose the [email protected]/TiO2 1DTDPC gas sensor for the first time derived from ZIF-8 composite ([email pro...

We proposed an enhanced-performance relative humidity (%RH) nano-sensor based on MOF-801/TiO2 one-dimensional photonic crystals (1DPC). The maximum reflectance-peak wavelength of it shifted obviously in the range of 20%-90% under varying %RH levels, due to the highly moisture-sensitive MOF-801 film in the 1DPC structure. It was demonstrated that th...

Vanadium oxide (VOx) is a promising candidate as a material for smart windows, and 0.7 wt% Nb-doped SrTiO3 (NSTO) is frequently used in electrodes for electro-optic devices. Here, we demonstrate that a rectifying VOx/Nb: SrTiO3 heterojunction has a photovoltaic response. It can be used in thermochromic photovoltaic modulating devices. The crystalli...