LIU G, WANG L, YANG H G, et al. Titania-based photocatalysts—crystal growth, doping and heterostructuring[J]. Journal of Materials Chemistry, 2010, 20:831.

ZHOU H, QU Y, ZEI T, et al. Towards highly efficient photocatalysts using semiconductor nanoarchitectures[J]. Energy and Environmental Science, 2012, 5:6732-6743.

JU D X, XU H Y, XU Q, et al. High triethylamine-sensing properties of NiO/SnO2 hollow sphere P–N heterojunction sensors[J].Sensors and ActuatorsB, 2015, 215:39-44.

KIM J, YONG K. Mechanism Study of ZnO Nanorod-Bundle Sensors for H2S Gas Sensing[J]. Journal of Physical Chemmistry,2011, 115(15):7218-7224.

XIAO Y, LU L, ZHANG A, et al. Highly enhanced acetone sensing performances of porous and single crystalline ZnO nanosheets:high percentage of exposed(100)facets working together with Surface Modi?cation with Pd Nanoparticles[J]. ACS Applied Materials and Interfaces, 2012, 4(8):3797–3804.

HAN X, SUN Y, FENG Z, et al. Au-deposited porous single-crystalline ZnO nanoplates for gas sensing detection of total volatile organic compounds[J]. RSC Advances, 2016, 6:37750–37756.

ZOU A L, QIU Y, YU J J, et al. Ethanol sensing with Au-modi?ed ZnO microwires[J]. Sensors and ActuatorsB, 2016, 227:65–72.

LAW M, GREENE L E, JOHNSON J C, et al. Nanowire dye-sensitized solar cells[J]. Nature Materials, 2005, 4:455-459.

LV Y Z, LI C R, GUO L, et al. Triethylamine gas sensor based on ZnO nanorods prepared by a simple solution route[J]. Sensors and Actuators B, 2009, 141:85–88.

RAI P, KIM Y S, SONG H M, et al. The role of gold catalyst on the sensing behavior of ZnO nanorods for CO and NO2gases[J].Sensors and Actuators B, 2012, 165:133–142.

CHEN Y J, ZHU C L, XIAO G. Ethanol sensing characteristics of ambient temperature sonochemically synthesized ZnO nanotubes[J]. Sensors and Actuators B, 2008, 129:639–642.

ZHANG H Y, YU S G, BIAN M J. Sol-gel synthesis of black ZnO/AuNPs nanocomposites for effective photocatalytic activity of methylene blue[J]. Optoelectronics Letters, 2018, 14:4.

WANG L, KANG Y, LIU, et al. ZnO nanorod gas sensor for ethanol detection[J]. Sensors and Actuators B, 2012, 162:237–243.

MOHAMED A M, GUILLAUME M, CHRISTINE G R, et al. Synthesis and Study of Stable and Size-Controlled ZnO-SiO2Quantum Dots:Application as a Humidity Sensor[J]. The Journal of Physical Chemistry C, 2016, 120:11652-11662.

TAUC J, GRIGOROVICI R, VANCU A. Optical properties and electronic structure of amorphous germanium[J]. Physica Status Solidi, 1966, 15:627.

BRUS L E. Electron-electron and Electron-Hole Interactions in Small Semiconductor Crystallites:The Size Dependence of the Lowest Excited Electronic State[J]. The Journal of Chemical Physics, 1984, 80(9):4403.