Zhi Gang Zou

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  • S C Yan, Z S Li, Z G Zou
  • 2010
Graphitic carbon nitride (g-C(3)N(4)) and boron-doped g-C(3)N(4) were prepared by heating melamine and the mixture of melamine and boron oxide, respectively. X-ray diffraction, X-ray photoelectron spectroscopy, and UV-vis spectra were used to describe the properties of as-prepared samples. The electron paramagnetic resonance was used to detect the active(More)
  • S C Yan, Z S Li, Z G Zou
  • 2009
The g-C(3)N(4) photocatalyst was synthesized by directly heating the low-cost melamine. The methyl orange dye (MO) was selected as a photodegrading goal to evaluate the photocatalytic activity of as-prepared g-C(3)N(4). The comparison experiments indicate that the photocatalytic activity of g-C(3)N(4) can be largely improved by the Ag loading. The strong(More)
Uridine 5'-monophosphate (5'-UMP) and cytidine 5'-monophosphate (5'-CMP) were biosynthesized by recombinant uridine-cytidine kinase (UCK) and acetate kinase (ACK). The ack and uck genes from Escherichia coli K12 and the uck1, uck2 and ack genes from Lactobacillus bulgaricus ATCC 11842 were cloned and inserted into the plasmid pET-28a. All of the recombinant(More)
Deoxynucleoside-5′-monophosphates (5′-dNMPs) are the basic components of DNA and are widely used in medicine and as chemical and biochemical reagents. A large amount of effort has been expended to obtain 5′-dNMPs of high quality and at a low cost. However, these procedures are inefficient and inconvenient. In this study, deoxyadenosine-5′-monophosphate(More)
Organic-inorganic composite photocatalyst g-C(3)N(4)-TaON with visible-light response was prepared by a milling-heat treatment method. The photocatalyst was characterized by X-ray diffraction, high-resolution transmission electron microscopy and UV-vis diffuse reflection spectroscopy. The activity of composite photocatalyst g-C(3)N(4)-TaON for(More)
We present a reflective-type optical delay line using waveguide side-coupled 13 microring resonators terminated with a sagnac loop reflector. Light passes through the microring resonator sequence twice, doubling the delay-bandwidth product. Group delay is tuned by p-i-p type microheaters integrated directly in the microring waveguides. Experiment(More)
A novel mesoporous SBA-15 type of hybrid material (3-trimethoxysilylpropyl)[4-(2-hydroxyphenyl)methylene] benzenesulfonamide (Schiff-SBA-15) has been obtained by co-condensation of tetraethyl orthosilicate and the organosilane, and the result of XRD confirms the order hexagonal structure of the composite. This hybrid mesoporous material is(More)
We report tunable two-stage self-coupled optical waveguide (SCOW) resonators composed of a pair of mirror-imaged single SCOW resonators connected by a phase shifter in between. Experimental results show that the coupled-resonator-induced-transparency and high-order bandstop filtering characteristics can be obtained in the transmission spectra of the devices(More)
We present a CMOS-compatible athermal tunable silicon optical lattice filter composed of 10 cascaded 2 × 2 asymmetric Mach-Zehnder interferometers. Active tuning experiments show that the filter central wavelength can be red-/blue-shifted by 13.1/21.3 nm with power consumption of 77/96 mW on top/bottom arms. Temperature shift measurements show that the(More)