This document discusses the use of ultrasonic spray pyrolysis (USP) to synthesize various types of nanoparticles from aqueous precursor solutions using a home humidifier. It describes how USP allows the synthesis of cadmium telluride selenium and cadmium telluride sulfide quantum dots, nanoporous carbon, cobalt-doped silica, titania/silica composites, nickel-doped zinc sulfide, and porous silica nanoparticles. The document provides several chemical equations to illustrate the USP synthesis methods.

1. J. Am. Chem. Soc. 2005, 127, 12007-12010
J. Am. Chem. Soc. 2006, 128, 12642-12643
Adv. Mater. 2006, 18, 1832-1837
J. Phys. Chem. C 2007, 111, 10959-10964
Chem. Mater. 2008, 20, 4033-4038
Adv. Mater. 2008, 20, 2599-2603
“Kenneth Suslick”
“Ultrasonic Spray Pyrolysis”
How Can You Make Nanoparticles out of a Home
Humidifier?

3. CdTeSe & CdTeS quantum dots
Nanoporous Carbon
)))USP
Δcbanmm XH)SOor(COCXM 32 (g)32(g)(s) )SOor(COHXC/MX ++
H2O(s)(aq) CMX +
Nanoporous Silica
EGDMA + Styrene +
SiO2 + Co2(CO)8
))) USP, Δ
AIBN, 1,4-dioxane
SDS, H2O
SiO2/Co(0)(s)
Nanoporous Titania/Silica Composite
Ti(IV)(CH3COHCOO-
NH4
+
)2(OH)2(aq) + SiO2(s) + Co(OAc)2(aq)
))) USP, Δ
H2O
SiO2/TiO2/Co
10% HF/EtOH
Ball-in-ball
Nanoporous Ni2+
doped Zinc Sulfide
ZnNO3(aq) + S=C(NH2)2(aq) + NiNO3(aq) + SiO2
))) USP, Δ
HF
ZnS:Ni2+
+ NOx + NH3 + HNCS
+ CdO + oleic acid + octadecene
Te + trioctylphosphine
Se(S) + trioctylphosphine
Δ, Ar
TOPTe
TOPSe
PhMe
)))USP, Δ
CdTeSe/CdTeS